CASE 580s are Really Cool! I am only familiar with the “C” model and wish I owned one.
Take my advice-stay in school and get your degree. A degree demonstrates you have the ability, discipline, and determination to learn.
Business is an excellent major, but these days you should not undervalue the study of English and Spanish if possible. The ability to properly communicate your ides is absolutely invaluable. This ability alone will separate you from most of your peers.
Also understand that after you graduate, the learning just begins!
Have fun and get involved in the heavy equipment business. I went to school in Peoria, home of Caterpillar, and many of my classmates went to work in that industry. I know it is a tough business but I have heard few complaints.
Good luck!