I've owned a 99 and an 03 Silverado. Loved them and they were fantastic off road. Both were Z71 standard cab short bed trucks. Too hard to find now, everything is 4 door long wheel base. And the price for a new truck is insane. I think the cost and wheelbase is why they are rare.
Also Ford and GM over options the trucks to drive the price (profit margin) up, and it is impossible to find a basic truck.
Are you my long lost, secret twin brother?!
The GM K2 platform (pickups and large SUV's 2014 - 2018) were the last time I saw a single cab, short bed GM pickup, and even then they were rare. And they were also the last platform for which you could get a manual 4x4 floor shifter, in the Work Truck trim.
Now the transmission, and transaxle are all automatic, and, as you said, its impossible to get short bed single cab unless for some reason you are in Dubai.
My very first, bought-with-my-own-money-for-myself pickup was a 1990 or 91 GMT400 platform Chevy Cheyenne single cab, short bed, 4x4 with manual transaxle and manual transmission with 3 speed on the floor and a 305 engine and the double slider back window vent. Oh, and the metal, manual side mirrors. I dont remember the specs on that truck, but I know that if I was doing 55 down the highway and took my foot off the gas, that thing lurched forward hard enough to stop me from choking.
If I could ever find another one just like it, I'd be happy as a pig in shite