Does It Make Sense to Purchase Dunlavy Speakers

Yeah I personally was fond for the value driven excellent little SC1AV's myself! And while I hate to see the company dissapear entirely, I would also be a bit concerened about buying the speakers used anymore, as you don't know what you'd possibly end up with I think.
I did a factory tour of Dunlavy some time back, and they did pick only drivers that fell within their performance specs. I don't know how much different the sound would be using drivers that may or may not meet those criterion. Hummmmmm....
In another thought, I think some of the Dynaudio Diappolito designs would make more sense, and should be sonically competitive at the very least. And that company is still in business.

We all make audio purchases assuming the manufacturer will be around, but there never is a guarantee of this. I mainly would not purchase without seing and hearing the Dunlavys. This is even more true for used. I agree...the prices are way too high still, especially since warranty service would seem unavailable at present. My brother-in-law owns SC-IVs and I love 'em!

This is a tough call, but personally I would not buy Dunlavy speakers at this point UNLESS you got an incredibly good price. There are simply too many other good speakers available today. If you want to purchase time- and phase-coherent speakers, you might explore Vandersteen, Thiel, Meadowlark, etc.

Why don't you ask AVL what they think, great place to do business.

Dunlavy tested and matched their drivers to 1db. The specs of every speaker made were put on file so they could send matching drivers if you blew them. I assume someone still has access to these numbers, maybe the dealer who bought the stock could provide them with the speakers. It's true that all the components in the Dunlavy speakers are "stock" so it's simply finding a stock driver within the same 1db range. Not a big issue if you can find the specs. Otherwise it would require sending a good driver to the supplier and having them match it. Either way this should not be your concern, the issue of build quality and parts integrity is a good point and one I would want assurances on.