I have run out of stock on the left hand side parts and have not had time to get set up yet for a full run. A fellow here on the site has offered his foundary services to cast them for me so that I can stream line the process. I have built and installed a couple of sets so far. My current process take me way too long to hand build each set and special order all the electronics.
Unfortunately I work a regular 40 hour a week job and this is just a hobby thing.
If you play with it long enough I am sure you can figure out a way to build one.
I had an open thread here offering the kit until I built as many as I could with what I had. In an effort to be fair, I pulled that thread down until I could get re-stocked.
If you want more info, email me
chrisnikki@juno.com