The rust doesn't look that bad (I've seen alot worse repaired) all the sheet metal you need is available. when your done with the rust repairs you will have a good foundation to start with for the GL. Good luck and keep at it.
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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