that car will weight #3250, the pair of cats that really arn't that bad to get off are $80 if orig. and less then half of them have aluminum rims.

#3250 minus the the weight of cats, battery say #3200



1.6 (tons) x your price ($220/ton here) = $352 + $90 (cats and batt) = $442 ($500 if it has aluminum rims) <-(and thats if your getting $220/ton)

in the end I would not pay $400, because your gambling to get your money back let alone profit. I would pay $300, at least $50 just for towing it to the yard and then anything you can get off of it is an even better day.