You might look at Antique Sound Labs. Their MG15 DT-S is a single ended pentode, which puts out 15 wpc. By the way, technically it is an integrated, and has received rave reviews. My brother bought a demo for US$550, and since using it hasn't bothered to reconnect his US$2,700 solid state 250 wpc unit. Another suggestion, the new Cary ___ V12(it has a longer model name but I forget). Just reviewed in Stereophile, has 4 triode amps in one chassis (for 50wpc) which can be switched (on the fly) to ultralinear at 100 wpc. Scull really liked it and retail is US$4,000. Audio Electronic Supply (a Cary subsidiary) makes the SE-1, which is a 300B SET amp putting out 7 to 8 wpc, and can also use 2A3 tubes at around 3.5 watts. Sam Tellig likes it, and retail is around $1,000 for a kit (with tubes) or about $1,200 assembled. Regarding speakers, I second the Coincident (ok, I'm partial since I bought a pair of Super Eclipse). Israel Blume will usually answer the telephone, and is highly regarded. Nice guy, and according to an e-mail from a TAS reviewer, is one of the best speaker designers in the business. Just my opinion, but give him a call and let him explain.
Let us know what you end up with, and what you compared in the process. That's part of the fun!
Let us know what you end up with, and what you compared in the process. That's part of the fun!