.....Reason fro the tractor idea is because I will be running on uneven ground. .....
Keep one thing in mind when using a tractor and loader......the more weight your tractor has, the better it handles a loader and a load. ....
..... I wouldn't even attempt it with the 45 HP, and it's 4-WD with fluid in the rear tires. It's the weight of the tractor, rather than the power.
The uneven ground makes JamesJr's point even more important.