are you Jonathan Heiliger?
I guess you're going to finally put the M5 engine to good use.
I talked to PTG about the dry Sump system about a year ago...
I suggest you talk to
www.drysump.com....they are near sacramento and have worked with Rebello (McGee says Rebello rules on engines) on dry sumps for the 6cyl...they might be able to get something going for the S62.
PTG, BTW modified the stock pan to make they're dry sump system on the 6 cylinders.
JL