Here's my take, I wouldn't spend another dollar over what I have to on something like that.
I have a flex fan and it's annoying. VRRRRRRRRRRRRRRRRRRR....VRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRR. Practically sounds like an S-10 Blazer
Just get a used fan from a junkyard if you need one.
As far as the electric route, I got a G3 alternator for $75 off a 94GT. Add maybe $100 for a set up electric fans off a Mark VIII and a $10 thermal switch and you've just picked up at least 10hp, nicer sound, cleaner engine compartment, and an alternator that will more than make up for the expense. I love my G3 alt. It's one of the best mods I've made.