Sorry for the unexpectedly long delay on these... I have ruled out aluminum now for a few reasons, so as of right now these are only available in acrylic.
One set has been released into the wild:
Ordering is open as of right now. Cheeks will be 3/16" in CLEAR and 1/4" in a variety of colors and will take 7-10 days once your order is placed. They will come with mounting screws.
Pricing is $105 per set for CLEAR (plus shipping).Pricing is $125 per set for COLORED (plus shipping).Please email me at info[at]pro-modular[dot]com to place your order.