That's the million dollar question.
To many variables besides lights and gauges. There's no more $85 dollar jeeps in a crate. The survey is a neat idea, BUT the range is a bit wishful IMO.
Here's my quickie breakdown on my rig over the past six years.
1987 M998 9500
Shipping 2000
Replacement parts 4000
4 doors 1700
5 very nice tires & rims 450 was a super deal
Air lift bumper & Rhino 400 another deal
Seat kit new & rear cushions 700
Differential 400
Steering wheel 85
Electrical good deal items... flasher, alternator, gauges, lights, switches, 400
Heater core & motor 150
Bought hard copies of TM's 200
Can't remember stuff ... 1600 "HMMWV amnesia" .... if you see green rigs .... YOU GOT IT !
License & insurance each year 600
Band-aids and swear jar ... lost count
Undisclosed funds and times I heard "money pit" from the boss lady. Not a dollar value 863 times.
Hours of labor ..... PRICELESS
Not cheap and wonder sometimes the price of such fun, LOL........ CAMO