Doug - I considered that option. However, IIRC, there was some interference between the side of the housing and the master brake cylinder (or to the pipes comings out of the MBC). It is also a decidedly non-stock appearing item in the engine bay.
I am using an E32 oil filter housing that also came with the oil cooler. Works well
Do you have a 3.5 or the 3.0 m30 engine block?
1987 3.5 m30 from an E32
3 different gaskets..