I think the number of positive replies indicate what a beautiful build this, and high quality pictures really help demonstrate exactly how nice it is. There is a solution for the missing T/A decals, but I'm not sure it's a "perfect" solution. Keith Marks makes decals for Trans Ams, but they are listed as "1973-1977" instead of 70+ as the brochures listed the late introduction Second Generation Firebird. The main difference being the Screaming Chicken on the hood instead of the one stripe that runs the length of the car. I do not know if the missing Fender and spoiler emblems, which the Keith Marks sheet provides are the same for 1970 and 1973 and up. Bare minimum, it would give you a convincing look that only the most avid Pontiac fan could tell was "incorrect". Here's the link to the decals:
You can order them through his Fotki site or he also has auctions on ebay. And no, I'm not shilling for the company, I'm just a very satisfied customer.
Funny, another friend (a talented graphic artist) and I were discussing these very decals the other day. That bird that Keith did looks like it was hand-drawn; it's not particularly good artwork, it's sufficient if you like a 5-footer. I've also seen some of his Z28 decals that were awful (a very well-regarded builder sent pics of a silver Monogram '79 Z28 he just built for a magazine article); jagged/pixelated edges, flaking pigment, the orange stripe was rendered as a series of stripes because ALPS decals don't blend "non-pure" colors very well. For the record, I have four sets of Keith's decals for other cars, and they're all very nice; crisp and the colors are pure, and I'm a happy customer too. Unfortunately they're not all to the same level of quality.
I don't know if Keith's T/A name emblems are the right size/scale for a '70. I've already taken care of Eric in the form of some blue T/A decals he can use w/o needing to go to Keith. His model is stunning in person. It practically glows. It's gorgeous; pictures don't do it justice.