Welcome,
Nice Aquisition!
I am jeliious! My first PH was a panel, & I regret having sold it.
It is great that you have taken a picture of the Original/Former owner with the truck.
In yrs past it was easier & cheaper to go with a GM drive train, But today it is not that difficult, or exspensive to keep it all Mopar.
The kewl factor will be greater if you keep it Mopar, But in the end, She is yours to do as you wish!
At the moment, we have a 54 PH in the shop for brakes & an exhaust, & it has a bigblock ford engine.