I can't believe the asking prices for new chucks. In all the years I've been doing this I've never considered purchasing a "new" chuck. I frequent the used equipment dealers on a fairly regular basis and find they literally have hundreds of chucks in like new condition for peanuts. The last one I purchased was a 10" Skinner 4 jaw that was in like new condition. The out the door price was $125.00.
I'll be visiting an equipment dealer later today. Not looking for chucks, but rather to get some hardware for linear rails I bought a few weeks ago. This dealer has racks of used chucks from 6" to over 36". Most are in excellent condition, and at reasonable prices. Over the years I've bought close to a dozen 3 and 4 jaw chucks for a couple lathes. They range in size from 3" to 10". The most expensive one was the latest 10" Skinner 4 jaw.