About 140 hours of printing later, I ended up with a pile of parts and the chance to test -assemble everything. I'm in the USA and this was traveling to Australia, so besides quality being important, the parts had to break down reasonably for shipping.
(* I also want to note, none of these printed parts have been finished at all, that was all going to happen at the other end. While printing all in black does give the pieces a nice uniformity, a lot of sanding and priming were in the future I'm sure)
So a pile of parts, and test fitting. I picked up my hardware and a length of pipe, and started giving everything a go.
[ATTACH=full]179025[/ATTACH][ATTACH=full]179026[/ATTACH]
Hardware holds the sling points on (they are solid-printed as interlocked pieces and then broken free), as is the tripod mount due to it being the most fragile part I think. The separation-point for breakdown can be seen in the picture above, where 2  5mm rods complement the pipe connection to keep the parts from twisting.
[ATTACH=full]179027[/ATTACH][ATTACH=full]179028[/ATTACH][ATTACH=full]179029[/ATTACH]