I know there has been alot of discussion on slave cylinders on this forum and a number of different installations both good and bad. I bought a bracket from Mike Forte that is designed specifically for the TKO transmissions. It was fab'd from stainless steel and bolts to the side of the trans. I powder coated it before installation. Other than that, no mods were made. It came from Forte with the CNC slave cylinder, rod, mount for fork and bolts.
I used a generic fox body fork with the pivot on the passenger side. The mount for the heim joint was supposed to bolt to an existing hole in the cluth fork. I drilled a second hole just to make sure it was secure. BTW, the fork is extremely hard and takes some time to drill the hole without tearing up drill bits. Mounted it with some 5/16" flat head bolts. Here's another look.
I welded a bracket normally used for brake lines to the frame to attach the hard line and the flex line. The adapter is a 3/16" inverted flare to -3 AN. Put a 90 deg 1/8"NPT to -3 AN adapter on the CNC slave cylinder. Put a piece of stainless steel flex tubing to connect everything. Seems like a very neat installation. Had to adjust the fork pivot to leave a small adjustment for the slave rod before putting the bell housing on. Otherwise, the slave rod stuck out farther than I wanted.
BTW, the clutch master cylinder is a 7/8" Wilwood and the CNC slave is 7/8". Seems to work fine although the car isn't on the road yet.