Steve ... the Mechmate was born in South Africa,but I gather the 'owner' (Gerald) handed it off when he could no longer afford the time to devote to the User Forum. There are a couple of companies here in the UK who can cut and bend the parts needed for a pretty good price ... the thing that puts many off is the cutting and profiling of the rails ... so a lot of folks fit THK style. The forum is a HUGE goldmine of info and the users are very helpful. If I had the space I would build one ... (over time)

Have a look at http://www.data-cut.com/ it can be modded to fit the size you want ...