Thanks so much for your interest in these, and for taking the time to write to me about them.
I would absolutely love to make these available in colored plastics so that you and others would be able to enjoy them as well. There are a couple different reasons why they are not, and why I won't be able to make them available anytime soon.
The first and most critical reason is that Shapeways has a technological limitation with the material it uses for colored plastics that requires printed parts to be bigger than a certain size. On this particular model there are a number of pieces that fall below that threshold, that are crucial to the construction of the figure. These are pieces like the joint ports in its chest, for the waist hinge and head's ball socket, the ball sockets in the thighs, the hands, details on the heads, and parts of their pile drivers.
The second reason is that the material used for colored plastics prints in a lower fidelity than the material these are currently available in. If you've bought other things in this material like items from @fakebusker83
(who I'm a huge fan of and routinely inspired by), then you're no stranger to the porous, sandstone, sugarcube-like texture of the material. While it works fine for solid planes and bodies, it does obscure small, intricate details. Parts of this figure like the iconic details of its chest, the cassette wheels in its back, and the details of its faces would all be muted if not entirely unreadable. For example, attached is a photo of the Solar Tower accessory I recently did to complete Magic Square Toys' Grapple. It is printed in the same material that colored versions of this figure would be, and nearly all of the detail that I intently researched and captured in its model are lost in the print.
The last, and probably most important reason to you would be that it'd be covered in white squares. That's because the colored plastics that Shapeways offers aren't colored completely through. They are a white plastic that is then dyed the appropriate color. All of the parts of this figure are joined onto a sprue tree, that you need to cut them off from. Every connection that was cut would would expose the white plastic on the part, that is beneath the dye. So you'd be right back at wanting to paint these for them to at least be a solid color. Unfortunately, I can't offer all of the pieces individually to avoid the sprue tree issue because some are so small that they'd be lost in Shapeways' print-cleaning process.
I can appreciate your aversion to painting these. They have some of the hardest details to paint well that I've ever painted. If you're ok with them being one solid color, or having a simpler paint job, then that's probably something you could try if you wanted to. If you think painting something so small would be difficult, then my only other suggestion is that I do have these guys available in the larger "Legends Plus" scale. Those ones are available in the colored plastics, but will still have the white sprue connections that I discussed above.
Sorry to hit you with this big essay on these little guys. I wanted to make sure I fully explained why they're not available in the colored materials for you. Again, thanks so much for your interest. The things in my shop are almost all things that I wanted to make for myself, so it's always humbling when someone else has a desire for them.