While I agree with you about Pres. Clinton signing the NAFTA agreement, you have to remember that NAFTA was created by Bush 1. We will never know what all went on behind closed doors, but I think it is wrong to blame Clinton for the NAFTA mess that was created before he ever ran for president. That said I think time has proven it was the wrong thing to sign the agreement.
I use Tamiya paints and very little else. My building area is in the basement and it stays in the low to mid 70's but it is somewhat humid. I have a ceiling fan going almost all the time, and I noticed that the paint will start to due just what you described if I don't turn off the fan. Your arid conditions along with the air conditioning or any fan you may be using may be your problem.
I did the Mazmanian '41 Willys and used a light coat of Tamiya clear Red, same as on the body. I have also used a very light coat of Tamiya TS-71 Smoke for others. I have seen other builders use Clear Blue and Green to look more OEM.
In the 60's I worked for Good Year in their retail stores in southern California. In addition to tires and the normal auto repairs you would expect they sold General Electric appliances, TVs and stereos. We also sold various after market wheels. They had Cragars, Keystones, ET, and Shelby wheels. The different companies all offered several different styles of wheels. The Cagars seemed to be bought by those wanting a more showy look. The Keystones were bought mostly by the cruisers. Shelby had the best looking "dish slot" wheel at the time. The ET's had both dish slots and painted spoke wheels looking much like an American wheel at a much lower price. The one draw back or advantage, depending on how you looked at it, with the ET was their "Unilug" mounting. The bolt area had a recessed oval area where you would put a "Unilug" depending on the bolt circle of the car. You could move a set of wheels from say a Ford to a Chevy by just changing the "Unilug" as that would change the bolt circle. Great from an inventory standing, but you better re torque those lugs after a very few miles and keep an eye on them. My '67 El Camino 396 4speed was just two years old when I went to work there and I put Shelby 14x7 and 14x9s on with Polyglass GT F60x14 and L60x14 tires on.
You have gotten a couple of very good ideas on lowering your Nova. The last '69 Nova I built I also wanted a lowered front suspension, but used a little different approach. If you study your picture for a moment you'll notice that the upper control arm has a curved surface to meet the wheel mounting hole which would be the spindle on a 1:1 car. What I did was to saw the circle from the lower control arm. You will not get the whole thing but will be left with a flat surface just below the opening for where the tire is mounted. Then do much the same thing with the upper control arm removing the part that the mounting ring would fit into. Then revers their positions between the upper and lower control arms. If you look at the picture and imagine the two upright mounting surfaces reversed it will work out to about 2" to 3" lower than stock. The part you removed from the upper control arm will have a flat surface to mount on the lower control arm. The part removed from the lower control arm will also have a flat surface to mount to the upper control arm.