I'm the happy owner of a Branson 2400h (same as the 2800 without the turbo).
ULSD is what it eats, ULSD is all you can buy.
Your only choice is on road or off road diesel.
Same stuff, taxes are less on the off road.
I don't burn enough to worry about 20 cent a gallon difference.
As for attachments, A 4 foot brush hog, 4 ft tiller, 6 ft back blade, 6-8 ft springtooth or spike harrow, 8 ft drag, 4-6 ft disc , single bottom plow for sure, maybe a 2 bottom, not sure about that.
4x4 with the plow, most of the rest can use 2x4.
Bransons are a great little tractor, lots of power but you'll lose traction before bogging down.
Use that 4x4 !
You should also look into getting the backhoe, well worth the $$$.
I just got 60 poplar trees planted over a 1 week stretch, using the BH66 backhoe, in hard, hard, rocky ground.
One of the better investments I've ever made!