Join Date: Dec 2000
Location: Southwestern Virginia
many, many luthiers and builders make 7 strings now. Here's a brief list of the ones whom I believe make acoustics.
LA Guitar Factory - Charlotte, NC
Buscarino Guitars - Western NC
-does have a classical model available in 7 strings. A former student of Benedetto
American Archtops - somewhere in PA
-arched top acoustic guitars, also a former student of Benedetto
Benedetto Guitars (as mentioned above)
For an acoustic 7 string, I'd recomend getting the Ibanez (though I've had my share of problems with it), and then getting it professionally set-up for action and intonation. I'm still having problems with dynamics (string to string) when using the pickup, which I've had replaced at least once allready. If you want a more thorough list of problems I've had with the guitar, you can either send me a PM or check some of my topics on the issues.
Hope this helps,