Glow engined ducted fan set-up has a hopper tank right up near the engine / fan unit...that works well and is a std. (typical ) set-up.

Darryl Cady knows his "stuff"...
Perhaps...if you already have the necessary fuel system components to try the hopper tank set-up, you could test that system out first...if it doesn't work, then the pump is an alternative...

Have you gotten a pump yet?