Hmm, Guy is right on the display factor. Id bet my farm (havent got one so call it my racing Kart lol) that most of you will never use the stop mo function after the first week or so lol.
I adjust mine maybe every time i dust it, which isnt too often, and even then i end up throwing it back in same pose it was in before i tweaked it.
Regards the joints themselves, remember there are NOT carrying any load at all, so they dont need any form of OTT joint reinforcement, there delicate, intricate, yet still strong, i mean, the commision set i did got a lot of use, never once did they break.
Maybe some will take the route of scratching new legs, its way easy TBH, just time consuming and costly, but a massive worthwhile exercise.
As for servos and gizmo inside the head etc, well on the vac model, yes, that is very easy to do, its designed for that purpose, on a resin kit such as this, its a much harder job, the challenge in building this alone will be high, the mods some talk of, will snowball that quickly.
If you got the stones, jump in and get carving, but, dont be put off if you know you can nail this as a stunning static piece as Guy said, itll still have a big effect in a room.
Either way, were going to see some really nice models for all you guys soon im sure.
lee