Thanks for all the comments, I'm just glad I finally get to ride it
odvelasc: I sprayed all the tins blue and let them cure in the sun for about 5 hours, rotating them on a regular basis so that the whole thing got nice and toasty.
I brought them back in the house and let them cool back down before I masked of the areas that I wanted to keep blue with regular blue painter's tape (in hindsight, it would have been much easier to make the curves and such with a cheap roll of pinstriping, but I took my time and got them just how I wanted to). After establishing the "lines" of where I wanted to keep the blue, I covered the rest with the blue tape and sprayed on the black.
I did a few coats of the black in less than an hour and about 30 min later, I carefully peeled off the tape (seems the flat dries to the touch within about 10 min with such light coats). Then I let everything bake in the sun for another few hours.
Around the gas cap you can see in the blue picture of the tank that I put several strips of tape going from inside the tank to just outside making a small cone. I hope I don't have any issues with the paint bubbling around the cap, but we shall see
now you've got me worried about something else that I didn't predict.