Thought this was pretty cool:
Testing a Lego car against different obstacles and improving it until it becomes a capable climber. Demonstrates what you need to consider: wheel diameter, gear ratio, 4-wheel drive, tire grip, breakover angle, weight distribution. Enjoy!
I only have 31.5" and I've pushed in the molle panel on the passenger side next to the door when it swings open and the tire makes contact. I think a 35" would limit your ability to open the door fully.
I've had good luck with Bartact seat covers and I just ordered a center console cover. Their customer service is great. I'd also recommend a set of door protectors: https://smile.amazon.com/gp/product/B00PV09VZ4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
If your dog could use a step up...