Thank you all for the nice comments and appreciation! For instance Don Goldman just released an higher resolution image of (part of) the area that worth a visit:
http://astrodonimaging.com/gallery/puppis-a-2/
Apparently we were imaging the same area at the same time
Indeed it is surprising to me that there are very little images on these objects, I hope this will serve others as good suggestion for a different target to aim next fall..
Clear skies
Marco