Paint job help

The orange Charger started one of the most active auto posts ever. You can find it in www.moparts.com. All sorts of cars are shown there painted with the "roll & tip" method, from Beetles to Porsches. Personally, I think using Rustoleum (Tremclad in Canada) is just too cheap. People report having to thin it a lot and use 10 coats w/ sanding in between. I plan to use a polyurethane boat paint, Interlux Brightsides, as many did in that post. It self-levels better and needs just 1-2 coats. I used it (white) w/ roll & tip on my trailer and it looks great. I did my 65 Dart engine bay, trunk, and floors with it (4 wht: 1 yell) and it looks fine. In the trunk, I sprayed it since easy to contain the spray there and many crevices. I still haven't decided whether to roll or spray it on the body. Rolling makes better use of the paint and avoids overspray everywhere. The final result comes down to how you sand anyway. I will not clear-coat, not after problems in my newer cars and the horrors you see everywhere in any parking lot. Single color is much easier to maintain and repair. Clear-coat is to move them off the showroom floor and for trailer queens, in my opinion.