29" SS choices
I know you say you don't ride enough to justify custom, but if that's the case maybe you can't justify being so fussy about a pure look either. I'd still consider custom. Yes it costs more, but yout get what you pay for -- that is, exactly what you want. I don't regret my custom Vulture for a second. FWIW, my Vulture has both a derailer hanger and an EBB, and I have to say the set-screw EBB is about the simplest, hassle-free tensioning system imaginable. If you are willing to get past your aversion to EBBs, you might want to consider the GT Peace. Although it has an EBB, it is completely free of both derailer hangers and disc tabs! Worth a look.
All that said, here are the the bikes I know of that meet your criteria: steel, SS-able, with no derailer hanger and no EBB
- Gunnar Ruffian 29, with slider option instead of EBB. $1000 frame.
- Jamis Exile. Includes derailer hanger, but it's removable.
- KHS Solo One SE. Sliders. $769 complete bike.
- RL Monocog. Track fork ends. $500 complete bike, or $250 frameset.
- RL Monocog Flight. Sliders. Hanger is available but not mandatory. $900 complete bike, or $550 frameset.
- Vicious Monolith. Track fork ends. $1300 frame.
For what it's worth, there are a couple of purist choices in aluminum as well
- Bianchi Rita. Track fork ends. $1400 complete bike.
- Misfit Psycles DiSSent. Sliders. Hanger is available but not mandatory.
Your options pretty much double if you're willing to put up with a derailer hanger. As already mentioned you can still get the look you want if you're handy with a hacksaw, file and touch-up paint. In steel:
- Ionic Steelhead (with slider option). $900 frame.
- Kona Unit/Explosif. Sliders. $500 frame.
- On-One Inbred. Proprietary sliders. $450 frame.
- Quiring Q-Ball. Proprietary sliders. $430 frame, $530 frameset.
- Soma Juice. Track fork ends. $400 frame.
- Surly Karate Monkey. Track fork ends. $400 frameset.
- VooDoo Dambala. Sliders. $500 frame.
In aluminum:
- Kona Kula 2-9. Sliders. $650 (?) frame.
- VooDoo Aizan. Sliders. $650 frame.
EBB SS bikes (steel):
- Badger Dorothy (EBB available). May include a derailer hanger. $1250 frame plus EBB upcharge.
- Gary Fisher Ferrous. Includes hanger. $2000 complete bike (including, oddly, gears).
- GT Peace. Has no hanger, and meets your no-disc criteria too! $550 complete bike.
- Haro Mary SS. No hanger. $400 frameset.
- Niner SIR 9. Includes hanger. $750 frame.
- Raleigh XXIX+SS. Hanger is available but not mandatory. $750 complete bike.
- Salsa El Mariachi. Includes hanger. $880 frameset.
- Zion 737 EBB. No hanger. $249 frame(set?).
EBB SS bikes (aluminum):
- Flyte Celsius 9. Includes derailer hanger. $400 frame.
- Gary Fisher Rig. No hanger. $1000 complete bike.
- Niner One 9. No hanger. $750 frame.
- Van Dessel Ramble Tamble. No hanger. $600 frame, $1150 complete bike.
- Ventana El Comandante. No hanger. $900 frame.
Hope that helps. I may be wrong about the derailer hanger status of some of these bikes, and some prices might be out of date, so corrections are welcomed [edit: thanks, nogearshere]. I've categorized all the SS-able hardtails I know of, not only in case you decide to compromise somewhere, but also for others who may be reading this thread and have similar but not identical needs.