Stick with the factory jack. A used factory jack is better, faster, and far safer than a brand new Hi-Lift. And as said above, the factory jack is more than tall enough for 35's and even 37's in a pinch.
My personal theory is the newer the Jeeper is to offroading, the more he'll be absolutely positively convinced he needs a Hi-Lift. And the more experienced a Jeeper is at offroading, the more he'll understand it is not. I stopped carrying my Hi-Lift 13 years ago when I moved to it to my backyard shed.
Here's a pic I took of my factory jack lifting my 35" tire about 3" off the garage floor...
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