Shawn ,
I understand what your saying as I think in time Brent will get all this sorted and into seperate areas, as their is a bundle of great info here.

OK on a better note here, I will try and give you some info on your delima.............If you have had it sand blasted or you have ground it down to bare steel , it needs to immediately sprayed with something like PPG's DPLF sealer. This will stop your surface rusting and having to start all over.

You can apply bondo , plastic filler , glazing putty..ect,, over this with just a hint of sanding with like 150 grit .

This is why i say only do a panel at a time and not bite into more then you can chew ( get done) at a time.

SprayTech