CLine does the bottom of your ram have a sacrificial pad on it or is it a square ram with no pad? It would be nice to have a way to mount the upper punch to the ram rather than having to hold it.
To help hold the lower die plate to your press platen I could pocket and epoxy 4 neodendium magnets as well. Ooooorrrr you could run down to HF and snag one of these from the return table.

I picked up one of these 2 from the return table for 27 bones and the only thing wrong was the rubber handle ends were missing. Either way no prob.
This is the V2 punch adapter