Here is the one I have been playing with. It has been working okay for what I have wanted and the price is good. It may not be the easiest to do exactly what you want but you can get a good idea of what a scheme will look like. If you are good with Photoshop or similar it is helpful to just edit the raw files and then use this program to look at them.
That's the one I was using too. Pretty cool because you can rotate it on all sides to see what it would look like. You can even "fly" it on the screen. And you can also select the background of your choice; your hangar, your favorite place to fly, etc.
Scott VanArtsdalen
Token Heretic
Nirvana Rodeo / Dudek Universal
S-6ES N612SV - GONE but not forgotten
RV-4 N311SV - SOLD