Sounds ok. What about if you're (like me) shite at golf... I might as well take a mulligan on each hole, which'll leave me with - 6600, then the pool will leave me with around -14400 after getting 7 balled in all 7 games plus a few fouls along the way... I reckon I might struggle with the poker then, even with my skills!!!
Perhaps those who are crap at either golf or pool (or both) could choose to sit one out with a predetermined amount of chips deducted?
Fair play mate, you've been wanting to get this going for ages... like Woody said, maybe set it up as you've said and just run it, see how it goes...
