They put 65 feet of cable for 2 reasons most likely.
1. It's cheaper
2. Less cable = shorter pull time = easier on motor
I'd limit long pulls if you replace the wire with synthetic.
Proto. $200 Made in USA
https://www.protorquetools.com/1-2-dr-50-250-ft-lbs-proto-adjustable-torque-wrench-j6014c/?gclid=CjwKCAjwqvyFBhB7EiwAER786R8mWVWYFTKT5kig6erC2gd38dZHP2-JxG5zdtw5_XbtByB5RXOi4RoCxfQQAvD_BwE
Mine is 25 years old but still like new in plastic case.
I too would use the rock rails if needed but have and have used the Lift Mate to lift the wheel. If changing the tire, I slip in a screw jack stand.
https://www.amazon.com/JET-SJ-5T-5-Ton-Screw-Jack/dp/B00079WOZI
I got mine cheaper at Northern Tool on sale.
I know this thread is old but figured I would throw.02 cents in. I bought my Willys Sport with trailer wiring but no hitch. The bumper indeed can be used as a Class II ball in bumper hitch. I wanted more. Apparently even installing the Mopar Class IV in place of bumper support tube only gets me...