RE: only one nice tree
If it's your only tree....it's your only tree. If your scouting tells you this is a good area...what other choice do you have. You can also give a ground blind a whirl if you want to.
The best advice I can give is the same as any hunting situation. Play the wind right and be as scent conscience as possible. You may or may not get busted. Stay off major trails while walking in/out.
Good luck
Jay