Nice to see that the cross board isn't as purist as some others...
I'm thinking the bastard of all builds: old Bianchi tange prestige road frame, random steel fork, weinmann sidepulls or decent centrpulls if I can find/afford them, shimano 105 levers, maillard/wolber 36h tubular track wheels, sugino track cranks w. a 42t 3/32 chainring, some big cog in the back. Basically a lowish geared, tractor treaded ss/fg. I'm a little dubious about the braking surface / durability of those rims, but there's only one way to find out