Hey Scott,
Here's my dream bike:
A 03 YZ250, with softened suspension, a welded crank and a flywheel weight.
From what I've heard, if you simply put the Flywheel weight on the bike, the crank can and will become misaligned fairly easily. I can't say I've ever seen it happen first hand..
But, I'd also get a softer seat foam, which would probably mean a taller one, a bigger tank, and a blue plate.. As for lights, I'd say simply get the smallest, lightest thing you can get, because they don't work that good for lighting a trail anyway.
Jon!
(ps... Anyone selling any enduro Computers?)
jmutiger@msn.com