Installed polished and refurbished O.G. Dia Compe 610's on my Steamroller and couldn't be more happy about it.
Here's the breakdown:
SRAM S500 Levers
standard lined cables and housing
Origin8 steer tube mounted front cable stop
Surly rear cable hanger
Wheels Mfg/Tektro cantilever straddle cable yoke
A pair of refurb'd 610's with shiny new repro Dia-Compe stickers from porkchopbmx.com
Kool Stop Supra 2 pads

Looks and works excellent with ample clearance for 33mm cross tires and I can stop on a dime. Legitimately stoked. The only remaining step is to install Shimano CB90 cable releases (when they arrive) and possibly play with a different brake pad so a 33c tire can clear the opened caliper while inflated.