No,
No,
No,
No.
A 1995 Samurai should have a viscous coupled clutch fan, and assuming that is working properly, there is nothing to be gained by switching to an electric fan - the clutch allows the fan to effectively freewheel when not required, it will spin at lower than full rpm unless the air flowing through the radiator is at a temperature that causes it to engage, so under normal, non overheating conditions, it does not draw an appreciable amount of horse power, so there is little to be gained by not having it. For similar reasons, it will have a negligible impact on gas mileage.
Does if function correctly - that's going to depend on your implementation - first, can you get an electric fan that moves as much air as your existing fan? Second, when that fan is running where does the power come from, the stock alternator is a 50A unit (up from 45A on the carbed Samurais), how many amps does your new fan pull, can the alternator supply it or will you need an upgrade? Does the upgrade use a vee belt or multirib, will you need to be changing water pump & crank pulleys as a part of the fan upgrade?
In a nutshell, I'd rather fix the engine driven fan rather than switch to an electric, and if the engine drive fan is working, just leave it alone.
