Saleen Need some help on value for my Saleen

I sold my 99' Saleen S281-sc in 2008 with 140k miles on it for $14.5k. Unfortunately, it took me 2 months to find the right buyer. I was getting low-balled at $10k and had to stick it out. NADA Guides doesn't give a value based on mileage, so the only possible way you could get a good estimate is to go onto eBay and look at what the closing auction prices are on Saleens in your regions.