It lives!
I re flowed every non IC solder point in the board and it's working now only it still has the usual interference. Not too sure how the power supply is because I got it for a buck in the same pile I got the system so it could be that our that 7805 might be putting out some dirty power too. Might have got too hot in the past not being attached properly. I do have done replacements from a pc fan controller with heatsink attached. They are good working ones I just didn't ever use them and kept them around to harvest the vrm out of them.

So I'll probably replace that 7805 any way....

I've basically got a red/blue static on screen and the sound isn't clear at all. I'm using a nes rf switch which I've used on 2600s before with no problem but I have had this same interference with other bigger 2600s and haven't really licked it on any system yet.

Any other thoughts that might be causing it that I haven't already going over?