BDK
As you know, the DoD wasn't happy with the early M151 because of their propensity to roll and required surplus units to be cut into quarters...though some have been restored. I knew a dealer in Texas that did a good business in them, sold for on-ranch, off-road use.
While I'm sure it can be done, you'd have to work hard at rolling a HMMWV, given its width. I drove a restored, stock CJ-5 as a daily driver for several years and never scarred myself, despite what Consumer Reports and CBS news said about them being death traps.
I know about the speed and noise issues, but I'm it looking to replace my Mercedes SL with one.
I'd like one for displays (I'd put he markings of my last Air Force unit which had a few) and as a backup vehicle here in the country when we get heavy snow. So, not a daily driver or "soccer mom" car. The carport attached to my six car garage is
just wide enough for one. One nice thing about them is their engines, basic GM stuff, so it's not rocket science to support them. The military service manuals are online and there are plenty of parts vendors. There is also a great forum if you have questions.