I have found a few Racing DYnamics roof spoilers for the E38.

I have 6 and I will sell them for $ 80 each plus shipping.

I also have a Rear Apron (Carbon Kevlar) for $ 300.
Front Spoiler $ 280
i and iL side skirts 250/set.

All original Racing Dynamics parts from Racing Dynamics S.p.A. in Italy. All parts are Carbon/Kevlar.

I have a set of 4.0 liter heads (500/set, complete).

I also have some final drive gear sets:

3.64:1/3.73:1/3.91:1 all for $ 150/eaceh set.

I am in So Cal and I take Paypal as well as major credit cards.