Hiya Kevlar, did you go for the shell? I bought one of those myself several years ago at a flea market, it cost me 200 kr(About 35$) back then. Personally I think the price is a bit high for that kind of shell, especially in that condition. But it's your money, and your interest
I have actually been thinking about selling mine since I don't really collect postwar Norwegian stuff anymore(Got a lot for sale if you're interested). Where in Norway are you located?
The Norwegian army used the Leopard 1 from 1970-2008, which would explain the age etc. I think "93" is probably the date when it was loaded again, so 1993 at least.