Good thing for you they don't make a megacab long bed. The megacab was only available with the 6' bed.

They did make a crew cab long bed. It's got almost as much leg room as the megacab but no space behind the back seat.

You could look at a quad cab with the 6' bed, it's got a good compromise of everything.


Ultimately, only you know if you need the truck vs want the truck.