Looks to me like a pretty good deal for this part of the country provided it's in nice condition as the pictures seem to show and that everything works properly. If you need a set of tires, that's around $1000 or so. I would also not be surprised if the brakes are sticky and need new/rebuilt calipers, and maybe a few other age related odds and ends.
For a '98, this would likely have the V10 and you would not have a distributor to replace (coil on plug design). The plugs in this vintage engine are somewhat notorious for getting blown out due to a marginal head thickness where they screw in; it's quite important to make sure they get properly torqued when installed, using an actual torque wrench, and are not cross-threaded. You should not have to worry about spark plugs for a long time.