I have a US Body Source hood (two actually) and bumper on my Chevelle. Quality was not the greatest but they are one of the few suppliers of parts for my car.
For a Pontiac with more suppliers to choose from I would definitely go with VFM or Glasstek (if they are still around).
As far as weights, my steel hood was 80 lbs; bolt on glass hood was 40 and the lift off glass hood was 20. Bumper was 6 lbs (vs 60 lbs for the steel bumper).
Lastly, I do use my hood hinges with my lift off hood. That was discussed on this thread:
http://forums.maxperformanceinc.com/...d.php?t=552543
Hope that helps.
K
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'63 LeMans Convertible
'63 Grand Prix
'65 GTO - original, unrestored, Dad was original owner, 5000 original mile Royal Pontiac factory racer
'74 Chevelle - original owner, 9.56 @ 139 mph best
http://www.superchevy.com/features/s...hevy-chevelle/
My Pontiac Story: http://forums.maxperformanceinc.com/...d.php?t=560524
"Intro from an old Assembly Plant Guy":http://67-72chevytrucks.com/vboard/s...d.php?t=342926