The seller put a lot of work into it I must admit but my guess is that it will sell more as an object of interest than a device for household use.
What I am curious about, since he claims the replacement motor produces twice the suction of the original, is whether he tested it for heat build-up.
The Model 30's original motor drew 535 watts and usually fared well despite unreplaced filters. Can the stronger replacement motor deal with heat build-up with an after filter in place? Without one, I pretty sure there must be noise issues.
Venson
Hello Venson:
I was always reluctant to modify significantly from the original specs and design for the reasons you raise. W/O the post motor filter, the noise would be more as well as the dirty exhaust. The original 30 motor had a huge rubber bell gasket/bonnet around the motor. The bell gasket stabilized the motor's performance during operations and muffled sound as well as diffused heat build up in the motor cavity. Not sure about the replacement motor, just as you. It's probably a lamb motor modified to fit with about a horse power or more of power. During prolonged operations, especially with the P/N, it could be a scorcher in an all metal body cavity.
Carmine D.