AC brackets

j par, That is excellent work. The "low mount" setup, in your first pic, would be an ideal way of mounting on a slant six, without PS. And you would have the option of lining up the compressor, with either the OEM A/C pulley, or the OEM PS pulley.
Yes also on that first compressor bracket I made for the duster where I clamp them together I actually bolted them together and drilled holes to them the very first time I remocked it up.. A guy could actually just bolt everything together without welding... I kind of trimmed off all the excess and then ground it and smoothed it and painted it...