I checked with a local restoration shop about aligning my front cap. He told me he would be a few weeks out in having time to mess with it as he was busy readying some cars for the coming show season. I decided to bear it and get back to tweaking on it myself. I don't know if the stars were aligned properly or what, but I managed to get a fitment that I can live with.

I have nice gaps, not precision perfect, but well within acceptable tolerances. I still can't seem to get the fenders to tuck in enough to stay on the same plane as the doors, but I have them very close.
I recently purchased a 'newly tooled' Golden Legion deck lid as well. I installed it and the fit was terrible. There's one of two ways to get it to fit correctly. Either take a hole saw or cut off wheel and remove the installed deck lid to hinge mounts and reinstall them in a different position or remove my EMS billet trunk hinges and go back to the factory steel hinges, which I did yesterday. The steel hinges allow more adjustment, but still not enough. However, I can do some welding by adding a small bit of metal to the hinge so that I can move the mount holes over a bit. By doing this, the trunk lid will have a perfect fit!! This is the best fitting deck lid I have had out of 3 repops and 2 factory GM lids. It just needs a little ingenuity to get that perfect fit
I can now finally move on to finishing the body prep for paint!
I have some polished EMS billet trunk hinges that will be going up for sale if anyone wants them.