Found part of the problem (pic) :D

Wow!
I appreciate all the input and willingness to help from you all.

I'm more used to making due with what I can get by on, and we both want it solid and reliable so I'm trying to make a decent balance between necessary costs and not.
We can afford the new set RRR linked ok if need be, so do you guys think it would be worth a try to put a used one in it?