I just sold a 68 coupe with a 347 stroker/5 speed/global west/ magnum 500s 20 footer paint, nice interior- I got 14K for it- bought it for 9k a year ago with all work done, but had some crappy aftermarket fuel injection on it so it ran like crap and it needed to be cleaned up- Body was absolutely beautiful- all original floors/ trunk exc- I would say your car is worth about 10K- maybe a touch more- to the owner of the beautiful fuel injected coupe- I think if you go with a little more classic looking wheel you will pull more $$$ Most older guys with more $ want more of the classic look- your car is pretty though-