that is a nice offer. the serial No is different...maybe they changed the way they number the boards, but i'm positive it's a 2002 Go170. the 2001 was the "friendship" and the 2003 went compact.
my board has 3 holes each side, with the central hole slightly higher than the two outside holes.
if you really think the side fins are worthwhile, i would be interested if you have a set, as they would be impossible to get through the dealer now.