Bedside filler or back bumper fill?

[hugger6933]

I'm at the point [or close enough to have to plan for it] in Wiggy's build at my place for the filler. I'm doing him up a 5.3 setup on the frame off that I fell into[started out as a patch panel on the cab]and now we are at the rear tank stage of the planning and prep. I have seen a few bedside gas doors that look pretty good, what are they cutout of? On the Camaro or Chevelle tanks the rear flip plate idea for the gas neck looks good to me witch tank do you prefer or like the best? On the Camaro or Chevelle tank did you just make some straps? Thanks for the help. Jim