I'm not trying to sway you either way because it's your money, but $2000+ is a waste in my opinion. The only reason I would even consider that is if I lived way up north and the cold-weather was hell, but with my $325 Weber carb and 30" tires, I get a solid 18 mpg, reliability, and as much power as I think is possible out of this prehistoric engine. I'm not saying that FI isn't better (it probably is, I'm sure), but how much better than that can it be, and for a $1700 difference?
Just food for thought--
Currently an '86 CJ-7 and a '77 CJ-7 Golden Eagle---#4 and 5 following a '01 Sahara, '90 Sahara, and '85 CJ-7....