Good points and advice. I'll look into it.I'm all for safety, especially if you're hauling kids...or anyone else.
But before you price yourself out of the market with a NASCAR-worthy safety cage, couldn't you build a a 4-point structure like you see on old CJ-5/7s and soft top Jeeps to this day?
A rollbar that fits INSIDE the standard soft top.
Not perfect, but if it's good enough to meet current government safety standards, it should be good enough for normal (not dangerous off road or Baja-race type) use with a HMMWV. Especially if you avoid doing aything stupid (I drove a short wheelbase CJ-5...a vehicle CBS's 60 Minutes called a death trap...for seven years as a daily driver and lived to tell the tale).
Find out the size and material used by Jeep, and have a expert welder fabricate it. You could even put mounts on it for back seat harnesses.
Something to consider before forgetting the whole HMMWV-thing in the name of an over abundance of caution.
If course, the key phrase is not doing anything stupid, and in case any attorneys are reading this:
Do not attempt...
Professional driver on a closed course...
Caution, contents are hot.
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