Since no one else did, I'd recommend a plain old golf cart. I bought one used on a whim a year ago. It joined the fleet of a tractor, 2 ATVs, and a flock of motorcycles. The golf cart is used ever single day. More than any other vehicle. And it is just a plain old golf cart. It has really impressed me how much 'work' it can do around here.
It looks just like this one: A Club Car Precedent. I added Ag-Lug tires on the back and knobbies on the front. It has never gotten stuck in mud or snow. Did get it stuck in deep pea gravel but, oh well, the other stuff can pull it out. It is all plastic and aluminum so leaving it out in the weather is no hardship. There are about a billion accessories you can add to one, including dump beds, lift kits, and even hop-up parts.
What it is is a 48-volt, 3hp electric motor, rear-wheel drive (with a differential), 2-wheel mechanical brakes and minimal ground clearance. Sounds inappropriate for your use but, as you have mostly flat acreage I think you might consider one. We usually have a 'homer' bucket strapped into one bag holder and the other strap keeps implements from falling out. Wife loves it. Dog loves it. And I think its really nice to 'motor' off not making a sound and not worrying about fuel or engine warm ups. A full charge lasts 2 or 3 days before it get sluggish.
After it passed the acceptance test around here, I 'invested' a lot of Internet time thinking I was going to improve it. But then it dawned on my that it is a freakin' golf cart! Just drive it. You can find them used as golf courses rotate their fleets every couple of years. $2,500 and up used is the price point where you can expect decent batteries. Yes, they have $900 worth of batteries but you only have to buy them once if at all. They hold their value well so just sell it if you don't like it.
And as a Ham operator, you have your own emergency power source!
Bob
