Been out of the loop for awhile. I ended up having several back surgeries and so forth, but I'm much better this year. I was finally able to put my costumes back on after 3 years and troop at DragonCon this year.
I haven't been on the forum in a long time, and I'm not sure if there were some discoveries made on the ESB Side Arm, but when back in the day everyone thought it might be a Nemrod, like the holster. I purchased one years ago and stumbled back on it a month ago. Here is my finally (after 6 years) completed version:
The uploader was moving too slow, so here is a link to the photobucket album - http://s90.photobucket.com/albums/k265/tbrown_007/Fett%20ESB%20Blaster/
[ATTACH=full]79218[/ATTACH]
[ATTACH=full]79219[/ATTACH]
[ATTACH]34762[/ATTACH]