Pics of #1. It's in lockdown at SOA HQ in Cherry Hill, NJ
http://i1139.photobucket.com/albums/n553/JustyWRC/SafariparkandSubaruAttic140-Copy.jpg
http://i1139.photobucket.com/albums/n553/JustyWRC/SafariparkandSubaruAttic141.jpg
You got it. Next time you're in South Jersey we'll head over to Atco Raceway. One of my good friends and the guys at his shop are all really into GNs. They'd shit bricks seeing your car.
Here's a link about repairing the Endura (rubber) bumper on the 70 GTO. The products and the techniques might be of some use for you on your hoodscoop project, since I don't know how all of that bondo will hold up.
http://www.goatsgarage.com/bumplft.html
You can keep the FW stationary using a flathead screwdriver.
I had a piece of metal wire sitting around and made a band which I looped around the pegs on the fw and the engine block.
I would not file down the turbo. It'll require some patience, but the trans will come out. A second set of eyes is a great asset.
Usually when I'm out there it's for work and I'll be in one of my work trucks.
The LGT doesn't go very far these days since I moved within a mile of work.