Possible second build

[Cautrell05]

So I'm up visiting my mom and her husband this weekend and he mentions the neighbors have a couple old Chevy pickups that he was thinking about buying. A few years ago they had me build a 68 Impala for them. Ramjet 350, 700r4, ac cruise etc. Turned out to be a nice road trip car.
Anyway, the green truck in the picture was the one he was thinking about. I'm not sure which direction he wants to go. Stock appearing mainly. They have a small farm they live on up in South Dakota. If they stay 2wd I'm thinking mustang 2 front end stock frame. Myself I'm thinking 4wd s10 chassis, stock vortec v8, smooth steel wheels and the original caps. All still planning at this stage. Thoughts? Opinions welcome
Nick