Will this cable set up work?

Any audio/video technician out there that can help me out? I'm really really concerned about this. I'm trying to extend my pc to display picture to my monitor, and when I want to move to the tv for gaming or movies, I can turn off my monitor and go to the TV. So 3 things:

1) I'm gonna buy 2 of these http://www.amazon.com/gp/product/B0018MB9U4/ref=ox_sc_a...
with these adapters http://www.amazon.com/gp/product/B003V7BJ9U/ref=ox_sc_a... and http://www.amazon.com/gp/product/B000E9U9GC/ref=ox_sc_a...
to connect both audio and video to make a 50ft cable which can be discounected when so it doesn't block up the walkway at the living room. Now will the audio and video transmit good with the length and the adapters?

2) Now I will use these splitters http://www.amazon.com/gp/product/B000BSHI4C/ref=ox_sc_a... and this http://www.amazon.com/gp/product/B000I21Z4U/ref=ox_sc_a... so I can connect my monitor/speakers, and tv at the same time so I don't have to go under the desk and switch them when I want to go to the tv.

3) Lastly, I will have this repeater(usb cables only work up to 16ft right? So I'll use the reapeater to extend up to 30ft) http://www.amazon.com/gp/product/B004I1E6MU/ref=ox_sc_a... and this normal usb extender http://www.amazon.com/gp/product/B001G4ZA6I/ref=ox_sc_a... for controllers, mouse, keyboard, remotes, etc.

Now will all this work? I'm really concerned because all of this is gonna cost me up to 40$ so if one cable doesn't work, I'm screwed, no way I can return all of those. Please if there's any experienced people out there, can you help me?