What at exactly is concave about these wheels? If anything, they look convex with all that material sticking out over the sidewalls. No offense, but that looks like a pretzel baker had a try at wheels - way too busy - and the ride height and and stance reminds me of an Impala with 28" dubs.
Let's see something more "period correct"! Fikses are not made any more and are the Kinesis still available? Even a good RS replica would sell well ...
G