I would not paint your contender to sell it, really a terrible ROI. Most folks that understand the contenders value will likely prefer unrestored so they could do their own scheme. Since it's been repainted, the unmolested option is gone anyway. If someone really wants it, but needs it turn key, then you might consider painting and such as a possible option. We purchased a contender this summer with 85 Merc for $500, needs full resto including trailer resto, so not certain the value of yours, possibly much higher in your region and a greater pool of buyers . Good luck with your sale.