[CR]Asian Oro Chains?

I am restoring a set of identical twin 100%-japanense bikes, and these came with HKK blue sky 5/6 speed ORO gold/blue chains. Lately these chains seem to be impossible to obtain. Thankfully KMC (x9 SL) and YBN (9 Sp SL Ti) have begun offering ORO chains again

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=310047831680

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=230250474356

Anyone have any experiences, good or bad with these ?? Or, a line on HKK blue sky (or just oro) chains, or other asian ORO chains ?? I actually have an ORO Sedisport, but would like to make these bikes 100% asian, if possible. Thanx,

- Don Gillies
San Diego, CA, 92122