I don't want to discourage you from adding to the reliability of your Moki, but having spoken with a few guys who are flying the 250 in several war birds, they said that all you have to do is keep the carburetor / crankcase pressure tube cleared of crankcase grease build-up and the Moki never misses a beat.
A fuel regulator or pump is rendered unnecessary.
However, I will admit it probably cannot hurt.
I will try to post more pictures before the end of the weekend. Having completed the gear, gear doors, ailerons and flaps, the most difficult parts of the plane are DONE.
I still have to run all the air lines and servo extensions, etc....ground test and test and test and test... then paint this whale
I am realistically shooting for flying this thing by mid May!