Welcome Dave,
You have got one clean work space! I'm jealous! The 500 looks great, as far as converting your 250 to 500,
there are several "steelie" conversions on the site you may get some Ideas from.
How many Bikes in Iceland.Hmmm...Well, That is a tough one...
There is a member here (Sandblaster) who has a motorcycle salvage business.
Maybe he can help out on parts, (I know most places in the States don't ship overseas...)
Glad to have you with us Dave!
Tuck\o/