I wouldn't put a pump outside the tank - the fuel is used to cool the pump. I had a CJ converted to use fuel injection and part of the kit was an external fuel pump. The fuel pump always gave me problems; I ended up buying a fuel tank that I could use an internal pump with.
"Every normal man must be tempted, at times, to spit on his hands, hoist the
black flag and start slitting throats." - H. L. Mencken