I think the issue would be whether there is enough demand for these cars. Based on the criteria Terry I'd imagine that the cars going through said auction house would command a premium over the market due to the "guarantee's" of full service history etc. Most auction houses we have here sell cars at a discount to the market, and typically to wholesalers (although recent efforts from pickles shows that they are definitely focused on getting to the "end-user" market) who would want to pay a discount to the market to maintain some kind of margin.
There also seems to be a general stigma that the secondhand "JDM" performance car industry is not averse to falsifying mileage etc. when these things are imported, making it hard to assure buyers there is a difference. Then theres the existing car dealers/importers (like some that you have already mentioned) who specialise in these and have good rep, but probably lack the corporate power behind them to do so on a larger scale while still being profitable.