I pulled the trigger and ordered the Formbot/Vivedino T-Rex 3.0 with the 400x400x500mm build size. The 19.7" is about 10" more than the min size I was looking for which is nice as there have been a few times I had to split up parts, and with 19'7" I think that will cover anything I need to print. Didn't see much as far as reviews on it but on paper specs look good. $1799 didn't seem too bad for the size, assuming they use quality parts, and provide some level of support if there are any problems. I'll post something here once it arrives and I get a chance to try it out.