Bit of an update:
I made up a new bulkhead panel to properly clear the new chargecooler
New stage 1 KEP clutch, this is rated to 550ft lbs torque so fine for my target level of about 450..
The release bearings changed to include a plastic liner, this meant that I needed to buy a new bearing guide tube from Porsche..
While the chargecooler was off again I thought I would take the opportunity to improve the mounting and filling system. Here is a new support bracket using a locost type suspension rubber bushing I had lying around
New filler neck welded to the chargecooler makes the pipework much neater and is obviously much easier to bleed and keep full. The filler neck was decent and came from Mishimoto, most others were pretty flimsy pressed items.
All fitted again, the chargecooler is much better mounted and easier to fill now.