(2016/03/30) I found this pair of 8x15 FORD Minilite Wheels on eBay http://www.ebay.com/itm/Magnesium-Minilite-15x8-Boss-302-Trans-Am-wheels-/281984656263?hash=item41a7986387:g:BagAAOSwll1WwTWv&vxp=mtr

Contacted the eBay Seller (Chris) and he called me. After talking for a bit, I made him an offer of $1,000 and he accepted. See emails exchange below.

THIS PAIR OF 8X15 FORD MINILITE MAG WHEELS DO NOT USE THE SAME BOLT-PATTERN AS PORSCHE, THE FORD BOLT-PATTERN IS CLOSER TOGETHER TO THE CENTER OF THE WHEEL. MY IDEA IS TO BUY THE WHEELS, WELD SHUT THE EXISTING 5 LUG-BOLT HOLES, FLAT-MILL OR SAND TO AN EVEN SURFACE THE FACE OF THE WHEELS AND THEN HAVE SPRAKER RE-TEXTURE THE WELDED AREAS SO THAT IT ALL LOOKS EVEN AGAIN, AS THE NORMAL FACTORY CASTING DOES. AFTER THAT, USING AS A SAMPLE THE SINGLE OEM 8X15 MINILITE MAG WHEEL I ALREADY HAVE, I'M HOPING THAT TOMMY RAMUNDO WILL AGREE TO HELP BY RE-DRILLING THE PORSCHE LUG-BOLT PATTERN ON THIS PAIR. THE PUDDLING OF THE MAGNESIUM WELD IS ALWAYS A CONCERN, ALONG WITH THE USUAL PIN-HOLES, MAYBE MARK SPRAKER CAN DO A BIT BETTER JOB THAN JIM SHIRLEY WHILE WELDING MAG.