July 97 as you have found out Si.
Closest RAL code I would say is 1016, but i'm no expert.
I have a factory powerlite jersey (medium though), ali powerlite cranks with powerlite chainring.
Cranks are made by FSA and have a tapered bearing which I cannot find anywhere.
Rob may have used GT profiles but if any of this is of interest just drop us a PM.