I used 1/4in vinyl pinstripe tape for the curves and the automotive masking tape for the bigger areas. The 3stripe on the tails and front markers are 1/2in automotive masking tape laid out and cut with an X-acto knife. I prep with some Scotchbrite pads and then clean with alcohol before taping up.
...and while I like the way the Sunrunner is turning out, I dont think it will ever look as menacing as the ThunderBat...and if I ever get around to dropping an L67 under that WS6 hood it will have the grunt to back it up. (maybe when the L36 gives up the ghost)