Check out Ebay
I bought my 1983 300D Turbo with 150000 miles in Atlanta for $5300, $7500 seems high. Check out Ebay there are a lot of good dealers like this one.
He is called Mr. Wholesale and no I don't know this guy he just seems to have nice cars..
2000 Ford 7.3 Powerstroke 4x4
2006 Mazda Tribute
1983 Black 300 D (donated to charity)
1993 Teal 300 D (160K) Sold
"I love the smell of burnt diesel fuel in the morning, it smells like ....VICTORY"