Thanks, I enjoyed the ride. I owned the original model IIs, made in 1977 I believe. I bought them in 1986 and kept them for 8 years. I have heard the later models however not the II Sigs. I always thought them to be a great all around speaker, almost full range, very musical, good soundstage, kind to all forms of music. Knowing you are 'sold' on the II Sigs makes amplifier shopping much easier. Search out the amp you wish to pair with the II Sigs, it well serve the earlier versions well till you upgrade.
I have not had a chance to hear anywhere near the possibilities in the 2-3K price range. However, about 4 years back I owned a Vincent Audio 226 integrated, little brother to the 236. The latest version on the market is the 237. These are hybrid models, tube pre and SS power amp. I wish I never sold my 226, a great sounding amp. Many positive comments found on this forum for both the 236 and 237. Actually a couple recent thread concerning the 237. They all lack a phonostage however.
A friend of mine has the original Rogue Cronus Magnum driving a pair of PSB Signature 1s. I think that is a very good all tube integrated. Latest version is model II. Rouge has a reputation of being very good to work with.
Good luck in your search!