Here's a "blonde on blonde" project frame that I've posted on BF previously, a 1950s RJR Olympic (later Bob Jackson, RIP). Still haven't thought too hard about how to build it up. It has a fairly uncommon lugset, Nervex 86bis/158 I believe, but the fork crown looks like a common-enough Vagner DP. Long 44.5 mm chainstays, 114 mm spacing on the rear, 66 mm brake drop for 700c rims, enough clearance for 650B x 42 tires, though the brake reach would be 85 mm. So probably 700c x 38 mm, with either a Sturmey-Archer rear hub or spread the rear triangle a bit and build it with 5-speed cogset. Seat tube is at the bottom end of my preferred length, so I need to consider carefully about how to do stem & bars that reach high enough for my more upright and high saddle tastes. It's a really light frame for steel construction: 2766 g frame and fork as shown. More photos
here.
