Hi there, I used to wonder myself and could not find what I need.. wanted a roomy 4x4.. end up bying a Rodeo, single cab with a long tray, build up a wood shell for 800 bucks, slide it in the back and bold it down!! Been 3 seasons and still going!! full lockable

4-5 (4 in if needed, 1 out) boards, 4-5 sails, 6-8 mats, + all the rest of the gear.
There is a multi usage cavity above the shell access from outside (1200x2600x150) which I have fishing gear, or extra wishbone, or mattress, etc depend..
Still happy with it today, its aging, thinking to build another one in ali this time, something I could remove anytime.. not sure yet. anyway here it is
good luck on finding what you need...