I was in a similar situation back in 2011 when I needed to start towing my (then) Kubota
B2920, which was a little heavier than your MF GC2400.
First off, consider a 7x16 landscape trailer. They ballpark at about 1500-1600# weight empty, which is about as low as you can expect to get a tandem axle steel trailer with 7000# gross (dual 3500# axles). The landscaper will be more than capable enough of handling your small tractor, and it is versatile for lots of other uses. I've towed tractors with mine dozens of times, but have used it for other hauling projects *hundreds* of times -- everything from lumber to logs, to loads of bulk materials, to stone and gravel. It beats any pickup truck I ever used in terms of capability and convenience.
Take the 1600# trailer weight, add in the tractor and implements (don't forget loaded tires either), some margin, and work out the towing requirements for the vehicle. At the time, 5000# was going to handle my needs and then some, so I set about looking at vehicles that could tow at least that much.
There are many options. To me the best towing vehicle is a pickup truck, but it was wrong for the other 95% of my lifestyle and family needs. For winter driving, decent AWD was a must. I wanted it to be comfortable and reliable. All the factors came together to steer me into a 2012 Acura MDX. It has turned out to serve our needs very well, and tows that 7x16 trailer and various loads like a champ. It came prewired for brake controller and hitch, has transmission cooler, and the RWD bias when accelerating off the line is exactly what you want when towing. (note: the Honda Pilot is based on the same chassis, but has lower towing rating and much less sophisticated AWD -- it's basically a FWD vehicle with pseudo-AWD).
