I'll second Omni... I used the MAE on my Z - acrylic enamel. Then on a couple of other projects I've used the MTK - acrylic urethane. Its soooo much better and the incremental cost increase is negligible.
I painted my Z in the backyard a year ago. Omni MP170 epoxy, MP182 high build primer, MAE black single stage. This spring I wet sanded and buffed out. Mind you, I literally painted in the backyard... no makeshift booth or anything... so I had bugs and such to sand out. I'm pleased with the results, especially for my first job.
I learned a few things, and I used the AU to paint a couple other projects... my skills are improving. When I eventually do the Z again, I will:
1- use the urethane paint. single stage is OK for dark solid colors, else BC/CC.
2- use a 2 part spot putty... I used cheap lacquer spot putty and I had shrinkage occur
3- build a booth
4- guide coat early in the paint job, as well as on the final primer
Oh, and I can attest firsthand, nothing can topcoat rustoleum except more rustoleum. Once you paint a car with it, if you plan to switch you have to strip it!
PS, trav - that truck is looking goooood! Love the color too!