$350-$450 is the avg price of a stock M112.
probably nothing wrong with it, not much can reallygo wrong unless they were trying to port it themselves etc.

Most ppl swap them out for a bigger blower btw, very few go for a Turbo set up as it cost's very big $$$ but $2500.00 can get you north of 600 rwhp now on a 03-04 Cobra.

Give it a shot and post up the results.

^^^never knew that re blower price used=cheap