When you refer to long bed, what size are you expecting? DC's (crew cab) have a 6' bed, and I think Toyota considers that a short bed.
You weren't clear whether the 2006 "long bed" with 8000 miles was an access cab or double cab, or what trim level it had, or if it was 2wd or 4wd. You should be able to get $6000 - $7000 off msrp on the remaining new '06 DC's, no matter what the configuration. You can input that 8000 mile "long bed" into Edmunds to find the TVM price if you have all the details.
You weren't clear whether the 2006 "long bed" with 8000 miles was an access cab or double cab, or what trim level it had, or if it was 2wd or 4wd. You should be able to get $6000 - $7000 off msrp on the remaining new '06 DC's, no matter what the configuration. You can input that 8000 mile "long bed" into Edmunds to find the TVM price if you have all the details.