Yes, I redesigned the entire unit on a cad program top to bottom, front to back. I tried to keep the original S.G. design and basic layout though.. The wastetank is darn near original specs with the exception of the redesigned bottom and blower filter plumbing. The first few tanks were mig welded but all new tanks are tig welded for a superb finish. I don't know how they did them before to be honest. Shawn probably knows.. Both the blower and liquid heat exchangers are made by John. They do cost more money but if you've ever had a pos HX'er you're bound to appreciate the quality they put into their exchangers. For the waste tank valve, a guy can have whatever he wanted for no extra cost. The reason I used it is you can rebuild the valve (new seals or entire center assembly) without unbolting the wastetank and lifting it up. You would have to do that to unscrew any other valve if it started to leak or wear. Just remove the 4 small bolts/nuts and the whole thing slides apart. I did use the stainless handle instead of the plastic handles that tend to break. I only have the 47 blower, no 45.. I'll have another blower option on the way though. The chemical injection won't fail because there's no injector. It's the same simple siphon system that S.G. always used. Just turn the gate valve on the left hand side of the machine slightly closed, this forces the pump to pull water from another source. In this case that other source is the chemical jug. You meter it into the machine with the flow meter which has the optional stainless internals. And yes, the vacuum relief valve is directly off the blower. As for the wiring, I just tried to make it clean and simple to repair if needed. I'm not sure if you use a relay switch Bob but it was kind of tough to make one harness and keep it easily accessible with the necessary auto shutdowns I used. I did try it that way and just didn't like it. Maybe I'll give it another go... Everything is color coded and simple to follow though.. Thanks for the input and positive comments! Seriously, I've been trying to perfect the machine and drivetrain for the last year and a half. It's kind of been a pita but I was hoping people would like it.. Pricing will be about where everyone else is.. 18-19 range through a distributor. If I could make it cheaper, believe me I would. I'm a 1 man show carpet cleaner who has zero buying power at the moment so I'm paying about what anyone else would for parts and steel. Stainless is a fortune at the moment and to machine the new drivetrain is expensive too.. I do appreciate the kind words!... At least now I can say I tried.. Thanks! Oh, I forgot to add, the new wastetank can be mounted anywhere in the van you want. Drivers side, passenger side or even out the side door. That was the other change I made is added brackets to the tank and optional floor mounting brackets so you can put it wherever..