Ok, here is how to make your ac/ps delete the B-R-A-D way.
Parts need: an old, but working focus tension pulley, mazda 929 belt tensioner, < 1 foot piece of 1" X 1" angle iron, various fasteners
Step 1, go to you local u-pull it and find a 90's mazda 929 with the v6
They apparently like to blow timing belts some someone will have removed alot of stuff to allow you to see the part with no effort. I saw at least 4, three had lost a timing belt and one was missing an engine
Get some engine degreaser that makes Al Gore cry. That belt didn't go for no reason.
Get your focus pulley taken off.
All cleaned up
Mount using 929 hardware with extra washer so the full range of adjustment is available.
Mock up with angle iron to use PS bracket. Realize that you nifty adjustable 929 tensioner will not work. Have beer, relax. Pulley can mount straight to angle iron with 929 nut and washer. Hey, it was 5 bucks at the pick and pull... and it will work, get over it.
BTW Al Gore is now BALLING because you didn't even use the bracket that got cleaned
Align the pulley carefully in all dimensions so the damn thing doesn't squeak. I suggest measuring your holes from the edge of the angle iron so its at least perpendicular to the belt path. Use a center punch before you drill. I used body fasteners to mount the angle to the PS bracket and a TORX from one of the seat belts for the pulley
Clean edges, paint, mount, DONE. Get a beer.