Hmm... I'll chime here for two reasons... I think that posability on the Monster, even if to a degree would be pretty cool. While totally posable legs would probably kill you (and risk making the model weak or unstable,) the option for three poses like you described would be neat. sadly, I think a 1/60 Monster would be way out of my league, but I'll chime in more on the other Destroids, because I'm very interested in those in 1/60 scale (and let me know if that drawing was any help...)
One other problem for me is that I'll be gone all summer, until late August, and I'd really hate to miss these... so I guess it'll depend on your actual timetable...