can someone please help me out, can you shoot me some close up pics of your '77 front end, Right hand and Left hand front corners, i need to see how the front fascia lines up with the fenders and all that good stuff, any help would be appreciated, and also if anyone has tips on replaceing the RH rear frame rail, that would also be handy, thanks

 

I'll answer your second question.
First of all, how good are your metal fabricating and welding skills? The rear of the Camaro (firewall back) is unibody. It doesn't have a separate frame, but it is welded as part of the body.
First, you would need to build a jig to support the rear of the body and the center of the body, near the end of the rocker panels. Keeping the body straight and square is very important when you start to mess with the structure.
Remove the gas tank next.
Then remove the whole rear axle assembly, and at least the one leaf spring from the car.
The frame rails are spot welded to the body. You'll need to find each weld and drill them out, then you'll be able to separate the rails from the body, either with an air chisel, pry bar, etc.
You have the option of buying a new factory style replacement rail, finding one from a donor car, buying a heavier-duty aftermarket rail, or even one that goes from the back up to and connecting to the front subframe. If you wanted to go with either of the aftermarket style though, it would be foolish to do only one side, so that now makes for a much bigger job.
Whichever rail you buy will determine how much of the original one you cut out. You won't necessarily be removing the whole frame from front to back. You'll be attaching the new rail to the body with plug welds called "rosettes" (welding through the holes you created in the trunk by drilling out the old ones). And then you'll be splicing it into the forward section of the original frame rail where the metal is good.
It's a good sized project.