A std cab was very common years ago as a extended cab or the older crew cabs were rare.
The worst mistake I made was going to a crew cab truck from a std cab truck with a 11.5' truck camper. I had the 11 footer on a std cab but wife says we need the crew cab for more room.
Holy krapz.
With my old one ton DRW std cab the front and rear suspension came to play for a smooth no body roll ride.
After mounting the 11 footer on the crew cab truck the front suspension was no help at all. Now the trucks rear suspension carried all the weight. I tried all sizes of sway bars and two different brands of the biggest shocks on the market and even more rear spring power. I still had a swaying bucking rig.
Well a tornado gave us a visit and turned the 11 footer to match sticks. The only thing we found of it was three of the hyd post jacks (bent like pretzels) and one LP tank and a thousand small 3"-4" pieces of the odd grey color interior paneling scattered along a 1/4 mile long path.
I would get the cab type I like or need.