Bubba, I use Hysol on my composite planes you can use slow epoxy with fibers also.
This is the vendor I get hysol from .
http://dreamworksrc.com/catalog/index.php?cPath=65_110
You need the gun but not the tips, just make sure it is mixed good.
I used a 3.5" dave brown spinner on my 2.3 and it was perfect. The canister really helps to keep the weight forward. The pipe was not easy.
HTH
Joe