I have got some new replica Fox forx tripple clamps with handle bar clamps. All fittings are titanium (metric not imperial like the originals).
Have an alloy stem that presses in and then the hole thing slots straight into the CR250 head stock.
All you need the 43mm forks and front wheel and a big fuield to have fun in! (eg CR480, so bigger forks and better brake)
Beautiful bits of kit for your pride and joy!
(also have a 44mm version as well)