Doug, for god sake don't buy a QHY9 OSC, get the qhy8. Bigger pixels, bigger well depth sony sensor instead of this noisey kodak crap. It also has a bigger FOV than the qhy9 cos of the bigger pixels. I'm sorry I sold mine and I was about to get another when I bought something else way more expensive
Only go qhy9 if you want mono.
As for adapters, I get them made when I need them, there's one coming now to connect the qhy wheel (M54) to the tak reducer (M72). It won't take a LP filter, I'll have NB filters in the wheel
Should cost about $80 delivered. I send em a drawing (attached) and I get an adapter ...