Interesting that wayneg, I took a 2001 250 Rev3 in part exchange for my 125 Scorpa, quite liked the bike...a dealer mate of mine mentioned that the newer models had a better airbox setup.
I must admit it never leaked any water in at the last trial I rode, it was pretty deep at times too!.
At the moment the rev3 is up for sale cause I had chance to buy a SY250 at the right price (but dont tell the wife) if the Beta does not sell in a months time I'll probably keep it.
The airbox mod is one of the things I'd consider doing from a purely maintainance point of view, I presume you had to buy a new rear guard / new airbox / and a subframe.....is that it??
Sounds expensive! was it?
Cheers
mark