Again,thanks for the words guys! I'm sure those of you familiar with my SW alien head sculpts know how I am with details. I'm looking forward to seeing this once it gets primed. When all of the distracting colors & tones are gone & one consistent color, it will start to look like some serious weaponry
Cheers Mando! I'm glad your pleased with what's been done so far.
As for harness mounting, I was going to leave that up to the individual. That way folks can do what works & is comfortable for them. I don't want to lock anyone into something if they have a preferred way or look to achieve. However, there will be some offered geared up & ready to go for those who might have difficulty in this department. I'm too toying with the possibility of a display stand that will attach to the pack & suspend it & the figure in the air...but that will be later.
When discussing some things with Mando, he brought to my attention of a 1/6 backpack mounting board that's out there that looks as if it would do the trick. There are also 1/6 backpack frames I've seen that would work just as nicely. These can be picked up for online vendors that part out figure as well as ebay. I'll try to find the links if someone doesn't beat me to it. As it stands now & from what I've found, I will try using a soldier story alice pack frame for mine.
Another possibility could be to do what Evilface did with the 1/6 snap-on stay backpacks he & Mando did. He spelled things out quite clearly with the posts he made demonstrating his method of building a frame to the back with plastic/styrene strips for the straps. If you guys have any other suggestions feel free to chime in.
Whilst on the subject of mounting, there is a detail I would like to address. I made a cross-cut section diagram of pack so you all can get an idea of the profile area of where any mounting system will be attached.
Because of the boosters being a larger diameter than the thickness of pack's midsection/body, there is a 4.74mm(3/16") height difference. The overall flat are of the back is 48mm(1 15/16") wide by 68mm(2 11/16")high approx.
I personally feel this is where the line of 80's simplistic toy design & realistic inspired creativity should be drawn. This is just me-if others agree with me, cool…if not, that's fine & dandy too…I'm just trying to prevent some scorched Joe thighs & asscheeks

It would seem that a jetpack-regardless of strapping system, should be set back some from the figures body. This is where some additional buildup will be needed. At this stage, this build up can be added to the model & be part of the final cast or remain as is for the individual to contends with. I'm waiting on my materials for the mounting system to arrive. If anyone has any of these existing packframes, I & I'm sure others, would appreciate if you could post some dimensions of them. Again, I'm wanting to get some input from those who are interested in this so feel free to share some thoughts.