The comedy makes my stomach churn too. I assume you have Bongo Fury already so if you are interested in him as a composer of interesting tunes / arrangements and his whole Psych-Santana guitar style then I would recommend ....
Chunga's Revenge
and
Roxy and Elsewhere
and if you are ok with the the orchestral, no guitars approach then Yellow Shark is absolutely essential
Best you find someone who has all the albums and makes you two or three cdrs worth of highlights. There are fantastic pieces of music buried within otherwise unlistenable albums and unlistenable pieces of music than ruin otherwise brilliant albums. There's the rub with Frank.