post up the VIN
define great? any rust? interior condition? IMHO no more than 4k assuming the interior is mint
if its that clean and just a lower knock that still runs 5k
post up some pics
5k is assuming your willing to wait, If you are in a hurry 3k and 5k for a motor keep shopping thats nuts
if you can remove and reinstall your self find a local engine rebuilders and have them rebuild if its a stock truck a rebuild should be under 2k for a basic performance rebuild