I really like the Old Air bracket that someone had the link of. However, the a/c is currently set up with the hoses running on the drivers side. They are not long enough to go along the firewall and up the drivers side. I don't know what king of project running a new set up going to the passenger side of the engine would be. The bracket, now removed and in my garage is indeed homemade. IT used 2 head bolts, 2 water pump and a brace going to a intake bolt.
Somewhat off topic, but when the head was pulled to investigate the blown head gasket, this is what was found. The threads were stripped down to nothing and you can also see some spider web type cracks leaving the hole. This is the same head bolt location 1 of the 2 were used to secure the a/c bracket.
p.s. this is the original 35+ year old engine in the car. Now that I am rebuilding a different 250, I can set it up pretty much anyway I want.
