If LKQ is still reasonable on rechroming it may be worth doing a couple. I am not saying it is impossible to find,but if a body shop needed one for insurance work,they would rather pay for one ready to install. Anywhere from $850-$1400 seems to be the normal price on a nice one. Good cores are getting almost as hard to find as the fronts. I would say two or three hundred is fair for a decent core.