HAHA! I did it with the seat in. 20" Extension... 9/16" Socket W/ a knuckle. There was a few my bolts my in-experianced hands  woulnd't let me get to... so ym dad became a human pretzle... and got em  out... here is the finsihed new chrome booster assembly product:

http://fattyslims.com/vette/pics/120105/Resized1/Resized_112 005%20079.jpg

http://fattyslims.com/vette/pics/120105/Resized1/Resized_112 005%20080.jpg

Looks a lot better in person...