they have been redesigning the cuts of 505s and 501s for years. its something you have to either deal with or find a replacement.
id try lvc 1967 505s... they are are cut kind of slim, but look like a 505.
evisu 2001 has a 32.25cm rise in size 34... thats a little over 12.5 inches.
http://global.rakuten.com/en/store/lotus/item/10000062/
http://global.rakuten.com/en/store/frisbee/item/10003203/
sda 101 should also fit what youre looking for. not sure about a samurai model...
you know you can always go to blue in green or selfedge websites and check measurements.
I found a really nice vintage suit a while back, but the sleeves are a bit too long, and it has working buttons. can a tailor shorten them for me and still keep the working buttons?