That
That's a beautiful bike, I love the theme. I may have to steal that idea.
I do see a few concerns however.
With the jackshaft mounts welded to the frame and the rear axle stationary there is no adjustment for the rear chain. You can see the slack there already. I dunno if a half link will correct this, but still have to be aware of chain stretch.
The brake caliper is mounted directly to the bracket, with no bushings so it can't "float". Essentially when you squeeze the lever, only the outboard pad is contacting the sprocket and pushing on it, instead of squeezing it from both sides giving marginal braking at best. Many people complain about these style brakes and they are usually mounted like this. With a hot WB700 I'd want the best brakes possible.
The description claims it has a polished Fairbanks Morse starter, clearly it isn't from the pics.
I saw a few other things but they are easily corrected and it's just me being picky. I believe this is a members bike, perhaps he can chime in?
Again, BEAUTIFUL bike. I'm sure the new owner will be happy!