Purchasing a truck camper dilemma

I too was hesitant about the size of a dually. Now that I've driven one for several years it doesn't bother me at all running mine around town doing errands. And mine is a 6 speed manual! Keep in mind that on a SRW the mirrors are the widest part of the truck...on a dually those rear fenders are about the width of the mirrors on your SRW cab so if the front fits the rear will too! I find the length (mine is a crew cab with an 8' bed) more of a limitation than the width - it is longer than most marked parking spots. If I can I make sure I park where I can drive forward when leaving because if there are vehicles close on either side I find I can't back up far enough to turn and drive away without running into the cars parked behind me.