Ref the sad looking honda,it is not a tlr,but a late RS250 model,
the tank seat is an original HRC item,I know the person selling it,
and yes it is expensive,but it is also quite rare
As for 200cc and 250cc engine swaps,its straight in for both.
the 200cc frame has a few extra brackets,that can be trimmed off,
the 250 frame has a bracket for the fuel tap that the 200 does not.
hope this helps a few people.
Whats this one worth ?