Hi col,
only the later ones are restricted to 45PS, the 3XV1 and 2 where sold as full power, from my understandings fitting the CDI from one to a later type, be it R, SP or SPR model will make it full power.
Theirs also Sugo kit parts if your lucky enough to find them what will be able to derestrict them.
In full power they are kicking out about a realistic 55bhp, maintainance is nothing too bad, just the same as any other 250 2t.
running 45PS engine wise nothing will hardly ever need doing, but the bike would seem slow and boring then.
I had a 3XV1 a year or so ago what had full nikkon pipes on, that sounded awsome and was dynoed at 58bhp @ wheel aparently by the previous owner
$3k for two sounds like a great price, wish could find them over here for that much lol
