Agree on the Rigidas. I'm currently rehabbing a 710 and contacted my friend to buy back the NOS Rigida 1320 rims I sold to him when I moved. Thought more about it and for now have polished the wheels and serviced the bearings. There are a couple of edge dents but after I put the bike back together then I'll decide on the rims following a couple of rides.
Maybe the Soma Eldons which are a dead ringer for the Rigida? Maybe still too narrow but look cool as hell.
The SR Apex is beautiful but of course you can't find smaller rings. Maybe a 110 bcd double with smaller rings instead of going triple? Will look more period.
I'm in the middle of the same considerations.