I guess it's about time I come in here and ask for some help on this. I'm trying to build an all weather commuter on the cheap, and I've run into an issue. The frame I picked is a 1994 Barracuda A2E, a 26" hardtail MTB with vertical dropouts. The rear wheel is a Nexus 8-speed coaster brake hub. I can't find a good way to get proper chain tension. Chain Tensioner won't work, as the chain will go slack when using the brake. Ghost ring won't work, the shift cable is in the way. I've got a few different chainrings and cogs, and can't find a magic gear ratio, even with a half link. Filing the dropouts is a bad idea, as the IGH requires anti-rotation washers. Eccentric Bottom brackets are expensive.
Anything else left to try? If not, any idea what kind of frame I should look for? Here is some info about the parts I want to use:
Nexus 8-Speed Coaster hub, 130mm spacing
Clearance for up to 26x2.35 tires with fenders
Front Disc Brake, Threadless Fork and headset (I suppose I might consider going with a drum brake if there isn't anything way to use the disc.)
I know a Schwinn Varsity can take 26x2.35 tires, any other old road bikes that can do this?