I'm suprised no one took a shot at this.
I'm not sure if Hinson makes clutch plates for a stock basket, but most guys on here are using the FAST clutch from FAST racing, or a TUSK clutch from Rocky Mountain ATV. Both work really well, and I havent heard any complaints about either.
The axle nuts will spin loose occasionally, but not if you get them tightened up right. Follow the procedure in Clymer, hopefully wou have a Torque wrench, and the right spanner wrenches, if not, I would look into getting both. You should also be using the red/high strength loc-tite on the axle nuts.
You can also buy an aftermarket single piece lock nut that works pretty good too.
Never heard of the tires, good size tire, make sure the knobs look pretty agressive at least like Razrs, or else they might not get any bite.