Firko had a look at that when the guy was selling it for $1500, but the cut off rear loop kept doing my head in.
Dont read too much into the number #, Ray and those guys punched anything and its not really a sequence numbering, the early ones have nothing. and i have seen some with the same number. numbering was also used for the motor model, which later became yam 1, yam 2 , yam 3 and so on
the only saving grace i considered after he knocked back my offer was the GYT barrel