Heck. They're not worth very much. You'll have a hard time getting rid of it. If it's just cluttering up your garage I'll take it off your hands. I'll even pay for shipping.
Seriously, I've seen well-used 44C decks with asking prices in the $350 range, but I have seen several actually sell in the $150 range in used but good condition. But then I'm in Virginia, where Cubs aren't quite as common as in the midwest. I think I would start in the $350-400 range for a new, unused 4C deck. You can always lower the price. Kinda tough to raise it after you start advertising.
Reminds me of an old carpenter I knew once. He walked past me with a piece of 2X4 mumbling under his breath, "Cut the damn thing twice and it's still too short!"