Let have a recap
The clutch was working but worn out
The gearbox was taken off
The flywheel was taken off
The surface of the flywheel cleaned up with emery
A new clutch fitted but the fingers now get mashed down
The slave cylinder get smashed off
New slave fitted
The same happens with Ridex Valeo and the transmech clutches
Original AP worn out clutch refitted. The release arm is in the correct position but now the slave only has 5mm of travel before it jams instead of 15+ mm
It was working now doesn’t
I'd start by taking the flywheel off and fitting one of the new clutches on the bench.
By loosing the centre spacer and bolts. There not much it can be. On the bench it should be fairly obvious