The berg 5 and berg bus conversions sometimes have clearence issues with the body (area where the rear seat belts mount to the body in the center) not much, but you would have to "hammer" some.
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1970 T1 W/MassIVe 2913cc RAT/?EFI? w/direct fire (very soon) and 915 trans
1962 SC 1776cc SP 944NA brakes, 993 wheels
VKG