I am in my early 60's. Decent shape, really enjoy hiking just starting to get hard on the knees. Have no interest in riding on the road. I want to ride offroad at a slow pace, lots of hills, creeks, rocks, and tress where I live. Class 1 and 2 are allowed where I plan to ride most of the time. So do I go with the throttle or just the pedal assist? Also seems to be alot of brands to choose from with vast differences in price points. Should I stay with a brand I know? Trek, Yamaha, Giant or go with somthing else. Would like to stay under 5,000.