Wiring looks like a rats nest in the trunk and there's out of harness wiring in the engine compartment, interior is a mess and the seats are from somewhere else and yes there could be a lot of damage under the goop under the hood. Would need to see the behind the glove box and fuse box and the underside before making a judgement, but this sure doesn't look as good as some that have gone for a good bit less than this ask. Somebody spent some bucks painting but not sure when that was. It could be a diamond in the rough, but the diamond is the exterior and the rough is the interior. Don't know how much a total interior costs but that's the minimum to be added to the price to make it a real car.