1995 Chevy Camaro Body Control Module?

Electrical problem
1995 Chevy Camaro 6 cyl Two Wheel Drive Automatic 152K miles

I have been having problems with my Camaro not starting. I have had my radiator checked, replaced my ignition switch and I have a brand new battery in it.

I had it towed to a Chevy dealer, and they told me that I need to have my ignition switch replaced. I had that replaced drove it home and 3 days laters it would not start.

I called them back and now they are telling me that it may be the Body Control Module. Is there a way I can determine if that is the problem? I just tried starting it and it will not start. I now my battery is fine it has a full charge.

I am trying to sell the vehicle, as I have been laid off since April. Need the money to pay bills.

What is my next step? Can I do anything myself to determine this is what it is, and can I replace this, if I can afford the part? Is this something I may be able to buy from a junk yard, just a thought?