I just got this truck for some parts for my short bed project and I'm selling the rest. I don't know anything about the engine but I'll sell it complete for $500. You must pull it. I'm located in downtown Mesa and I have an A-frame chain hoist that you can use to remove it.
I haven't tried to crank it over nor do I know the mileage, so you know about as much as I do. You can come and do a compression check or whatever you'd like to check it out before you buy it.
Price is firm firm but I'm open to second amendment trades or trades for a VK56 engine