I am at my friends friends house looking at his 87 T/A parts car and he has the relays I need on it. I am just going to make sure that I get everything I need off of it. Do I just need these 3 relays? I am not planning on mounting the relays on the firewall, I am planning on mounting them where my MAS should be. So how much of the wires should I need to get.

Also how do I find out if they are any good?

Here is a pic of them:

 

You should already have one of those for your fuel pump. The other 2 you should only need about a foot of the wiring if you plan on mounting it where the MAS module goes.