Considering you never contacted me for a quote on anything, I have a tough time deciding how it would 'be a small fraction' of what I would charge but won't argue the point. If you're happy that's what matters.
What I know is that I went through FIVE of Eastwood's so-called Pro 1100 Powder Guns in less than one year. The POS would quit working, I would box it up and return it, and the replacement would last a month or so and eventually die too. After taking advantage of the manufacturer's one year warranty over and over again, Eastwood attributed my continuing problems to ME (after a decade in the industry) and, after sending out the fifth warrantied gun, then fired me as a customer after 19 years and thousands of dollars worth of loyal patronage!
So what it came down to is that they sold a crappy product -- an expensive crappy product -- that they wouldn't stand behind and that was somehow my fault.
The most telling aspect of my story is that Eastwood no longer even sells the thing and my fabulous Hypersmooth, purchased during my fifth incident of downtime waiting for another piece of crap Pro 1100 from Eastwood, has been a faithful and truly outstanding workhorse for several years now without so much as a hiccup.
But if you got such amazing results that you're now trying to sell it off to somebody else, more power to ya!
It's probably fairly obvious now why I amended my first post and chose not to share this earlier, but your rather smart-assed reply kind of warranted a response on my part.
Good luck with the sale.