Based off of the stock height + suspension lift + true 35" diameter tires with a bit of leeway for tire compression but no suspension sag due to weight.
81.9 Inches
80.5 Inches (is my second calc with wheel centerline @ 47% of measured tire height and measured stock height of 71.75)
This is calculated, not measured. I did this to see what will fit in my garage too.
If you know your actual mounted tire diameter, I have those calcs too. I have calculations for 0-5.5" sl + 0-3" sl + 29-45.5" tires.
There are so many variables here that it not going to be easy to get a good estimate.
Tire pressure.
Measured mounted size vs. advertised diameter vs. actual diameter.
Vechicle weight with and without fluids, drivers, and passengers.
Suspension sag.
Hard top, soft top height vs stock advertised height, vs measured height.