KR1 wheels on KR250? Spacer help Tim?

[ScottaKR]

Well, since just buying my first home, I now have a garage to play in, and have finnally got most of my bikes in the one place.
This got me looking at the spare KR1 wheels I have sitting round and how hard it'd be to fit them on the old Tandem Twin.

Tim- did you happen to note down the spacers you used on the rear end for your conversion.
I'm tossing up whether to try and make spacers and caliper brackets to keep the Tandems forks, or to put a complete KR1 front on it.
Any suggestions?

Cheers, Scott.