I can visualized the whole movie with Papa as the doc and Peter Stapfer as Marty and instead of a Delorean its a Diezel VH4 that travels through time when played at 888 decibles
(Peter says) "Papa...you telling me you built a time machine?.........Out of a VH4 (?)
"What does this thing run on?"
(Papa says) "To generate the 1.21gigawatt... It requires something with a bit more kick..Plutonium"
(Peter) WHAT?!!.. You telling me this sucker is NUCLEAR