I've found some fir but all in 700c and 28h... But I think I just solved, I've found a cxp33 650c, so I've ordered as well a 700c for the rear ;)
Maybe with the time I'm going to get a pair of assos laced to c record hi-flange... But definitely not for spinning around town.
aren't there some obscure fir rims to be hunted or something? would totally finish off the obscure italian vibe.
still think a23s would thrust you in the future though