I live on, and help maintain, a golf course and have owned several golf carts which were used and modified for several and various purposes.
In my opinion they are very useful for transportation and light hauling as well as successfully modified for many specialized tasks.
Regarding type, for mostly golf course, I prefer electric.
For the larger estate, gas. Batteries do require a good deal of maintenance, and are fairly spendy to replace (every 5 years or so) and depending on where you are when the batteries run down, it's not as simple as running back for a can of gas.
My current electric (while not golfing) fitted with a small hitch pulls a filled lawn roller, moves a fairly good sized
chipper shredder, cement mixer and small trailer with sacks of ready mix etc. And we use it for traveling around our residential community at times. Gas would do equally well, but I prefer the cleanliness as well as the economy of electric (except for battery replacement cost of course)
If this still appeals to you, you might look for a used utility type golf cart which are factory built for that purpose (but do tend to be a bit more worn than the average used golf cart)
Sherweld