A 500cc+ ATV/UTV, a sprayer, and a drag.... youd be amazed at what you CAN do. Throw in a little disk and a 2 row planter and its even better! The larger equipment, the more you can do and the easier you can do it. I work on a couple hundred acres for deer and do 4-6 acres of plots. For over a decade most was done with my 4-wheeler, sprayer and a drag. And it turned out very well!
Congrats on your new ranch!