Most of the Jap extra cab and dual cable are not legal past a tray length of 60% of the wheelbase. Our BT50 freestyle trays are 2100 long, my Navara dual cab tray was 2000 long . My new BT50 dual cab with a tub is 1500 long, about 1950 diagonal. Hearing reports of blokes being booked for rear tailgate down , therefore obscured number plate, depends on the Cop I suppose.
The Hilux with ramp / frame arrangement could be made to suit a dual cab I reckon, pull it out after use .
Had a F250 Supercab, could carry 5, 2450 inside the tub and once I loaded 300 lengths of 2400 cable tray.They are a ute!!! Saw one a few years ago with a tub and a platform level with cab height , two enduro bikes sitting up there, Lord knows how he got them up or down.