I can't find this specific question addressed in any of the similar threads.

Goal - new cap/topper for F-350 Super Duty long bed that will accommodate four bikes (two road, two mountain) upright, preferably w/o removing front wheel(s) and with minimal wranglin', bulldoggin', wrasslin' and foul language. Really hoping ARE MX with walk-in door will work; also thinking about Leer 122 if the ARE w/ walk-in won't. Any experience-based advice and tips appreciated.

I have had a cab-height ARE for 10 years and I am happy with it. I know not to buy cheap, go for quality, all that motherhood. I'm looking for specifics about the overhead clearance, door clearances, etc. and putting bikes in & out, transporting them upright, etc.

Thank you!