How so? Simple mechanical linkage isn't safe for a jeep but it's safe for flight control linkage on every aircraft (excluding fly by wire, which would really have you shitting your pants)? Or unsafe because I didn't buy it from a website or the dealership? I wasnt paying 7x kbb value for a beat to shit factory RHD.
The belt is tensioned by sliding the base plate (which is notched) and held with 3/8 grade 8 bolts and lock nuts.
There are venders who sell DIY kits for crazy money or they'll install said kits for a few hundred bucks if you bring the jeep to them
http://www.postalthings.com
As for wipers once they're on how often do you really adjust them? I had three days to finish this project from the day I bought it and that was during my night shift work week. Washer fluid is the least of my worries we live in SC...so not shitty salt covered roads to need it.