ac parts

Used amplifier as shown in photo. No idea if it works. Came out of an 84 FJ60 that I removed the AC from. Open to offers. Happy to send for shipping and if it works then you can pay me. I see used ones online from $100-$200-plus dollars.

At some point, I have GOT to put AC in the '84. Assuming I can find someone parting out a compatible truck with AC - which parts are worth getting? The easy answer is "all of them." But these are parts that A. May be shot. B. I'll be paying to ship. I know I want all the brackets, dash...