if you buy it, be prepared to be swapping a new block in it sooner or later. or better yet a tranny. theres a reason its for sale.
my regal's got 223 on it. its a 98, it needed a new front end, and the rear suspension is next on the list. other then that it rides well, quite solid.
mine also has zero rust. you may want to get under it and check it out good.