One piece of advice would be to practice with some smaller covering pieces on some scrap to get the hang of how this stuff works at the different temperatures and such.

I did this before covering my first plane and it helped. I used Ultracote as well and was very pleased. The LHS dude recommended it and I'm happy I went with it(lotta good comments on RCU regarding it as well). Plan on using it on my current SSE build as well.

Gonna use monocote though for the graphics over the baselayer of ultracote. Everything I've read indicates it's much easier to use as a graphics material over the baselayer.

Good luck!