Owner is Andre Abenson, car is a E32 740iL. Andre organised the BBQ party and the grill was made from one of his parts cars. He is a well know member there on the 7-forum and has a used parts shop for E32 and E34 parts
http://stores.shop.ebay.de/7er-Teile__W0QQ_armrsZ1

Andre speaks English, no problem. BTW: he ships worldwide. Very reliable and trustful person. I have met him last year on the BBQ party he held in his shop/warehouse when I was on vacation in Germany.
Andre http://img171.imageshack.us/img171/5...illlogoru4.jpg
http://img30.imageshack.us/img30/577...enabensonf.jpg

Andre lives with his wife on a houseboat on the Rhine River in Mainz-Kastell, near Frankfurt.

Springs as far as I know are from K.A.W. On the E32 model they offer
BMW 7/1 730 - 750i inkl. iL E 32 VA.55+HA.35 1020-3055 281,91 € -

VA = front axle 55 mm lower
HA = rear axle 35 mm lower, with LAD shocks
http://www.fahrwerke.de/de/produkte/federn/