Stephen,
You have seen the scopes that Mental4Astro and I have built. Mental4Astro consulted the Dobsonian Telescope by David Kriege and Richard Berry extensively. My rebuild is here...
http://www.iceinspace.com.au/forum/s...ad.php?t=60865
Mental4Astro's rebuild is here...
http://www.iceinspace.com.au/forum/s...ad.php?t=54572
These may give you some ideas
Cheers