Flash chillers are designed for pasteurized beers that can be stored at ambient temperatures and then flash chilled for consumption. Not intended for non pasteurized domestic beers.
DougA, do yourself a huge favor and get a loan and do this right. Even the quote for $2000 seems low. You want a quote from an installer who understands what it takes to not only get the beer to the faucet but how to assure a quality presentation to your customers. This will result in high resale of draught and your loan can be prepaid in a relatively short time. Eventually you will be selling nothing but draught and very little bottle beer.
If you go the the "cheap" route, what you will be missing is the profit you should have made on all of the beer that went done the drain. Do not make the mistake other retailers have when it comes to dispensing draught.
Scott Zuhse, Instructor
Micro Matic Dispense Institute