Prototype Mail-Truck Abandoned for TWENTY YEARS - Will it Start? | Grumman-Olson Kubvan

This 1985 Grumman-Olson Kubvan (prototype USPS Mail-Truck) was parked in a shed for twenty years until I rescued it a few months back. The seller told me it needed an engine as the one it had was locked solid with 'little-to-no chance of running again'... Can I get it to start & run?
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TOOLS USED IN THIS VIDEO:
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