Marine grade gas line, a see-thru fuel filter, fuck the cream. Cream is going to lift, clog the fuel petcock. I'd pour more money into swapping out clear fuel filters when it comes time. Only thing you should worry about is push the bottom of the tank and see how much rust thinned out the metal. If it's hard to move... only your filter knows for sure.
Anal move? Dry out the tank for weeks on end. Palm the shit out of the tank all over, short of denting the thing. Air blow what breaks off, fill the tank and catch the rest with the filter. Chopper me gulping bike, not pour, but place those bottles in the tank. How much gas did you lose walking that thing to the next station, where you coulda had a V8.