Engine porn - 1966 Ranchero getting a new drivetrain

[Cobradavid]

My daughter has finally agreed that it's time to replace the 200 cu. in. I-6 and 3-speed manual in her 1966 Ranchero - her daily driver. https://thefactoryfiveforum.com/show...3-Garage-Buddy

The goals for the engine/transmission swap are reliability and budget. A bone-stock 302 (~200 hp?) would be perfect, and we could make it look like a 289 that was an optional engine on the '66 Ranchero (she wants to retain a period-correct look). Also, I'm thinking about using a throttle body EFI system like FiTech to get a little better driveability vs. a carb.

Here's where I need help from the Braintrust that exists on this forum:
What years 302 are preferred for longevity, affordability, and what will work with a throttle body EFI system?
Are there differences in the various years of 302s?
Are roller lifters an option? If so, what years?

What manual transmissions (4 speed or 5 speed) will fit in a 1966 Ranchero/Falcon tunnel and mate up to a 302?
Are there differences in the bolt patterns for bell housings?

Thanks in advance for your help and advice!

David