Advice Needed: Converting to a Rotary A/C Compressor

For sure use a Sanden, as most all resto-mods do. They aren't rotary. They have 7 double-acting pistons, driven by a swash-plate (effectively 14 cylinders). Earlier ones had 5 pistons. Most common is SD7H15. If depth is a problem, the H13 is ~1" shorter. I have even seen H12 size for Honda Civics, but you need volume to condense that muggy FL air. All have the same dimensions on the front end. Most come w/ 2 pulleys, but there are rare 1 pulley ones. You can download a manual that gives dimensions for all choices. Rodders commonly rig up mounts using adjustable turn-buckles like shown in post 3, but takes more thought than a designed kit.