OK, here is another repro from data taken a couple of years ago by my homemade prototype (200mm Newtonian with Moonlite focuser / Paracorr / STL-11000M). Hopefully an improvement on the original processing effort.
This is a (L+Ha)RGB image (L=80, Ha=80, R=90, G=60, B=80 minutes). Subs all 10 mins at -10C.
Large Version:
http://upload.pbase.com/image/149376621