Nice build, but from personal experience. That 500 lbs base weight is going to bite you in the ******** if you drive a steep side hill. Once you load it with gear, man your going to be very TIPPY. I should point out, should you ever lay it over againt a canyon wall it will help keep the body damage down to a minimum. Ask me how I know!
None the less. It is a nice rack.
Happy Trails!
Curtis in Texas