I was ridding the other day and a guy was loading his brand new 06 WR450 into the truck at 10:30 am because he smashed a radiator. Radiators cost more than $200 so I would protect those first. Skid plate is second. You wouldn't ride a ho without protection. WRs like to be ridden hard and put away wet just like a ho. Suspension is important but you don't need to buy a matress for your first ride.