Mike,
Did you leave the MC on the firewall or tuck it down on the frame? If it is still on the firewall, you can fill it with a turkey baster instead of directly out of the can. I bought a remote fill for mine that I probably wont use because of possible splatter. It will be mounted with the fill hose disappearing in the general direction of the MC and tie wrapped off. I do understand about a too expensive a paint job. Mine is not painted yet (April)and I already have $1000+ in materials plus a new $500 Iwata spray gun.