Gary, very cool. I tried the HOK stuff - not easy to do and pretty pricey.
Regarding application of the silver, you say that you cannot come back to an area that has already been sprayed. When spraying a long fuse, does the last lengthwise pass blend OK with the first lengthwise pass as you work your way around the fuse to your original starting point?
All you need to do is start on the bottom of the fuselage and work your way back around to the bottom from the other side. Spray the metallic right up to the metallic already sprayed and try not to overlap the paint. It will blend nicely and if it is not perfect then it is on the bottom of the plane.
Gary