Migrating HDD to SSD RAID 0

Thanks for the advice.
There seems to be no going back to Windows 7 (unfortunately). I've tried every trick I could find to get it to install but kept getting hung up on the "need cd/dvd driver" issue, which I guess is really an SATA 3 driver problem. I finally had to give up.
My rollback option disappeared and my Windows 10 activation said goodbye when I replaced my motherboard and CPU.
Microsoft was no help after three disconnected phone sessions and about six hours of wasted time.
I ended up with Educational because it is a free upgrade at the college where I work. It's basically a rebranded version of Enterprise that I used to upgrade 10 Pro, but it did get me activated without spending more $$$.
Now I would just like to move my HDD into the RAID without having to reinstall every piece of software I have.

At the time I thought the rebuild was irrelevant since my 30 day roll back time from the Win.10 upgrade had expired anyway. If I could install Win.7 on this build I would gladly stick with it.
as far as your Question concerning my decision to switch to RAID, call it a "learning curve". My last build was about 5 years ago, painless and completed in an afternoon, since then I have not kept up on the new tech. was running XP Pro, upgraded my memory a couple of times and my GPU twice as well, I also set aside my XP drive and bought WIN.7...never had to touch my drives. Finally everything went to crap and my rig could not keep up with the newer games and upgraded editing apps. If I had passed on the free upgrade to Win.10 I would probably still be a happy camper.
The need for for speed got me started researching and in all the Internet mess I found out about SSD and then RAID 0...things progressed from there and I have been reading until my eyeballs are bleeding.
I bought one 250GB SSD to run apps that could use the speed, when I found out about RAID 0 I bought another (both took me over my budget). The Internet is a heavy mix of sound information and outright bullshit, nothing seems to be "cut and dried" anymore. If had known that a larger single SSD would have given me both storage and a decent uptick in performance I would have went that route....but here I am.
I have also been told to keep these posts short and to the point, a matter of etiquette I have now broken.
Question:
Can I span the two SSD' and receive the same performance boost as a single large SSD?. It makes sense to me but then 1,000 internet "pros" have differing opinions.
As in my initial question, my main goal is to clone, image, or whatever, my entire HDD to SSD and have it bootable as my C: drive. Currently the HDD has about 350 GB on it and there is still the issue of keeping Windows without having to purchase a full version and a handful of programs that I have lost the activation keys to.
And yes I have a full backup of my HDD.
Please don't hold my ignorance against me, I'm doing a fine job of that myself.
Thank you for your time and effort.

Well,I understand why I can't boot from spanned drives now.
I can probably do the cloning that you suggest after a bit more reading but frankly my head has reach it's saturation point and is beginning to overheat.
I think my best bet is to stick with the RAID and shell out some more money for a retail version of Win.10 for a clean install.
Having an EDU upgrade over a 10 pro upgrade over a 7 Ultimate then cloned from a HDD to SSD just doesn't sound healthy. I can reinstall the programs I have keys for and try to clone and move the others. If I lose em' then I'll have to pay the price of losing the keys.
In the end I need a system with a structure I understand and am comfortable using.
You were spot on with your comments as to how I went about all this...I'm putting it down as a lesson learned, costly as it may be. I just would like to get back to work and play instead of reading white papers, blogs and watching YouTube videos.
Thank you again for you time and assistance.
I'll let you know if my rig bursts into flames during boot up.

Maybe I should be more concerned about myself bursting into flames.
I would love to have Win. 7 back but like many others using Z170 I can't get it to install by DVD, USB or command prompt voodoo.
Oh well, this is not a chat room.
Back to the learning curve.
Thanks for not treating me like an idiot...which I very well may be.

I've been an HVAC Tech for 20+ years and I say the same thing to rookies all the time,funny thing is....it never works on the good ones.
To answer your question...yes, I took a fire extinguisher to myself then went and got a beer.
I need to set this aside for awhile and give myself time to digest before I eat any more.
Or send more money to Microsoft.