Roland purchased the optics for his line of 10" Maksutov-Cassegrain through Aeries Instruments and then apparently did some fine tuning. Aeries Instruments had their own version of the AP 10" Maksutov-Cassegrain, not as aesthetically pleasing as the AP but functionally it's equal.
http://trafyx.com/bao/ariesmk10.html
This scope came up for sale on Astromart 2 years ago (for a fraction of what the current AP Mak-Cass is being sold for) and I enquired about purchasing it but the seller was only targeting a European buyer
