Nice Deck 36 MT Tony!
I remember discovering their original website back in the day and getting blown out of my chair with the amount of detail in their photo tutorial on the build-up of this motion tracker.
Out of curiousity I just went to check out their site and found what appears to be its epitaph...
http://www.deck36.com/On a brighter note, a decent portion of the original website appears to have been archived here, but many of the photos appear to be missing...
http://web.archive.org/web/20021124135617/http://www.deck36.com/That said, without a doubt KEEP your Deck 36 MT -- that data plate is definitely the icing. Also, I'd keep the real parts as well. The Master Replicas version -- do with it what you will. I have one, and I will probably only keep it until I have been able to build up my real parts version.
In fact, I was one of the lucky few who knew about the Sphygmomanometer (pump widget) auctions on eBay Stephan is talking about -- and yes, I managed to get one.

Once again Tony, great photos and interesting story of your Deck 36 -- thanks for sharing!