Old PSU Worry

Jul 18, 2018
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I'm desperate to get my new PC finished and have been on a tight budget. Its mainly used for work but also some gaming at times, this is what its going to be:

AMD Ryzen 1700
MSI X370 Gaming Plus Motherboard
Team Group Ram DDR4 3000mhz 16gb (2x8gb)
Nvidia GTX770 2gb MSI
3x 1TB 3.5" Drives
1x 240GB 2.5" SSD
1x M.2 SSD 120GB
3x Case Fans LED

Now my PSU is a 700w OCZ GameXStream, now I bought it from friend a while ago which sat in his closet and wasn't used much. Here is a review I found for more details:
https://www.pcper.com/reviews/Cases-...-Supply-Review

I appreciate its old and as much as I can't really afford to spend another £80 on a PSU, do you think this will be fine for a few months in this system? Also what would you recommend for the future?