I noticed that the Hutech H beta filter has a peak very close to SII 672.4nm. The blue line on the graph below.
So I tried making a false colour image using this colour allocation.
Red from Hbeta to RED
Red from Halpha to GREEN
Green and blue from OII to BLUE.
Large image here 1.6 mb
http://members.optusnet.com.au/~trlee8/LTNBFC.jpg
Seems to work.
Bert