SOLD!
This is a used and very obviously repaired bell housing slash oil tank for... ...well for what it says.
It includes the top cover, oil return, as well as the clutch slave cylinder and piston.
The pictures show that the part has been welded back together and I make no warranties as to anything about that.
A new unit (assuming they still have stock) is priced at 1,800GBP (about $2100) as a bare casting.
As is and complete with the various parts, I'd like to get $1500USD (plus shipping of course)