The Troopacoola kit looks really nice, and all cast off of original parts. I followed his progress making the parts, and if I were in the market, that's what I would go with for an accurate resin kit.
The paintball blaster has a few (needless) inaccuracies, like some of the t-tracks are one hole too short, and a few other things.
I did get a really nice cast rubber one from Hellhounds props, but he does take a lot time to deliver. A "4-week" turnaround turned into 11 weeks, with not a great amount of communication. But the cast is really amazing (off of original parts, even stamped letter details come through), metal rail, and cast in so many pieces it has almost no visible seam lines, and rubber so I can drop it (or get it caught on a door frame in the holster). Assembled and painted, $400 plus shipping when I ordered it. He does have a known issue with communication, but makes top-notch E-11s. EDIT/UPDATE: Hellhounds has been ghosting all recent orders, and multiple people have reported that he is no longer communicating, but also has their money. At this point, I can no longer in good conscience recommend Hellhounds Props. Great work, but a bad idea to order now.