How about I start with a progress shot? =) Here's the chest wing upgraded awaiting painting:
http://i1276.photobucket.com/albums...4-7FD5-42F5-9CEF-ECF1E0840986_zps26y0cxs1.jpg. Will be spray-painted purple metallic. The 3 enclosed shapes per side will be painted chrome silver, and hopefully I can hand-paint some original sticker detail in acrylic.
Indeed, it is based on the G1 toy - I had it as a kid and my wife got this re-issue for me as last year's birthday gift! =) I am using direct-proportion scaling (per section, not global) where possible to get the authentic look, though I've had to do a lot of edits for ergonomics & my human proportions.
I will add more detail to the forearms to match the toy, which will bulk up some and closer to the joint.
For the width of the body, I'll add as much as an inch to each side with add-on side detail panels. I don't want to add more than that though, as it could make things bump when my arms are down.
For the upper arms, the insides of the tracks mark where the torso's edge begins - the upper arms move freely by way of a hinge & turntable bearing. Here's the prototype shoulder joint:
http://i1276.photobucket.com/albums/y470/Martaxus/Shoulder 1_zpsglvqgz4z.jpg. The range of motion is limited by the length of my arms. Here's a video that shows some arm movement:
http://vid1276.photobucket.com/albu...7-888F-4C22-B55C-23765A8CD729_zpsvfqu8stc.mp4.
I'd thought of making Scavenger & Bonecrusher bigger, but made them this size so their upper end wouldn't be much over that of Hook's parts and they wouldn't hit the chest wing so much. Hopefully with extra detail & the scoop arm they'll look a bit bigger. I used doors as a guide for max height to pass an indoor bathroom door without the stilts & minus the head (Velcro-mounted).
Power conduits sound good! Which kind of ducting have you a mental image of?
It's not how much work as much as it is time at this point. Long list of edits, plus completely redoing the paint job as well. Just under a month to get it all done, and many steps are new to me. First costume with insulation or EVA foam, first stilts & of my own design, types of paint on surfaces, return to Envirotex resin (low emissions, flexible)...I have to make compromises.
Also planning to have multiple sound effects: 3 cartoon quotes + a back-up beep from a speaker in the top of the torso, a 4" 15W speaker at the front-bottom of each foot playing a 'ka-thoom' sound with each footstep, and 2 sounds from each fist via mini-speakers (smashing glass & something else that doesn't need base sound). I got this method down from Megatron's
http://i1276.photobucket.com/albums/y470/Martaxus/IMG_2422_zps9g2g1o4f.jpg cannon sound - you get one of those programmable sound cards, remove the .25W speaker and connect to a powered speaker.
Nice call on the head, I hadn't looked at it so much but I think you're right. I can lower it by 1-1.5".
Legs are being re-covered with detail, and thighs may be painted spandex in a squared-off manner.
Thanks for the pointers, please keep them coming!