I've built the wheelset for the DL-1 Loop Frame project. The rims are ETRTO 635 (28 x 1 1/2) from DutchBikeBits.com in Holland, steel, painted black with gold stripes. The hub is a Sturmey Archer X-FDD Internal Brake Dyno, and the spokes are Sapim straight 13 gauge from Holmes Hobbies.
The rear wheel is built with a Sturmey Archer X-RD3 internal brake, internal gear hub.
The next step is to put the wheels on the frame so that the locations of the cable braze ons can be determined.