While probably more work and effort that most (likely myself included) are willing to do, thanks a lot for sharing your idea. The prices really are extreme but the whole supply/demand thing is a nasty driving force to overcome. To take the time to pass on your ideas to help others is what forums like this are for in my opinion, and every little bit helps.
Hell, with the price of deisel climbing it won't be long before your cleaner is more expensive! (just kidding I hope!)