1. Kind of a small piece, what's the split?
2. If you are set on mowing it get rid of the trees and smooth it out.
3. Any tractor will weigh more, if you add a decent BH a lot more.
4, Dig some of those trees out, spread the dirt around and level it out.
5. Again - another vote for a BH.
It really sounds like you need a small BX w/BH. This spring I passed on a few BX23's, 24's before I got my present ride. They were just way to small for me.
1**Check out Barlows -
Used Kubota Tractors used.
Right now he's got 3 TLB's that fit your needs. He's well respected and shipping may not be that much.
Also - one of the advantages of a backhoe is the SHEAR FUN.
And make sure you get a thumb!