I don't think you would have any problem getting 15K for that motor if you can find someone doing a blown mopar build,there not likely to do it cheaper unless doing it them selves! parting out the blower setup, a lot of the parts are specific to mopar or 440 , blower intake, pulley's,tensioner brackets so there only valuable to someone doing a mopar build!I would think the blower itself is worth 3-4k with carbs if it's been built[clearanced] properly! you should be able to get enough from the blower and parts to build the engine normally aspirated and buy a hood, you still need to deal with the paint!