Congratulations
Joe:
That is a job well done. It reminds me a bit of my own adventures putting my TriStar CXL back into shape. That machine was purchased with a lot of parts missing, including very HTF ones like the little grille on the upholstery tool, the hose and the manual.
Eventually, I got it back to what it was when new, absolutely complete and correct, but it took some real doing (and some real money!). That you were able to make a Sentria from scratch like this, complete with nearly every accessory, is phenomenal.