I've managed to grab some OIII data over a couple of nights (6 x 30 min), some not exactly ideal that I hope to eventually ditched if I get more.
With this data though I've tried to make a blended Ha + OIII image.
I mapped as follows:
L: Ha
R: Ha
G: OIII
B: OIII
I've got some gray stars in the resulting image that I'd like to make white without wrecking anything else. I haven't worked out how to do that yet, so I'd like to hear of ways to do it, preferably in PixInsight. My StarMask attempts haven't been successful, but that could be that I'm not getting the right combination of settings to get it to work.
Astrobin:
http://astrob.in/197456/0/ - larger version
OIII only astrobin, with details:
http://astrob.in/197381/0/
Ha only astrobin, with details:
http://astrob.in/195475/0/