Can you sew a cover crop. Mustard, clover etc that you can chop and drop once you have a better idea of what you want to do?
My guess would be a forest /
wood garden, using the trees that you have as wind breaks. Mulching should help to raise the ground temp, though I know nothing about the area that you live in. Is it under snow in the winter?
Are you planning on using what you chop to build
berms or hugels of some sort?
I think I'd be drawing a plan of the lot, indicating wind direction, slope etc, taking lots of photo's and getting to know the site. It's small
enough to walk every visit and not take away from building time.
No, you don't want to go bulldozing the site. Make the most of what you have. What are the trees? Are they any good for construction or building?