That's a nice looking gaspipe rig. Personally I'd find a chrome moly frame to put the money into but you've already got that one looking nice. Building and riding your own wheels is a satisfying endeavor as has been said.

Just a caution here:
My old strong 220 pound riding partner ripped the welded bottom bracket right out of his Huffy after having ridden a century on it and quite a few hundred miles. That's one reason I'd personally put the $$$ into a lugged frame if I were going vintage.....Speaking of vintage there's a gaspipe thread somewhere over in the C&V forum where you could show that one off.