For your tennis court I was thinking along the lines of passionfruit vines. They will cover the fence and you get lots of fruit out of it. I would be spraying the weeds now. As there is nothing there you want to keep you don't need to be careful what the spray touches. Then you could mulch and manure. See people who have horses and try to get any of their stable throwouts. It will combine horse manure and what ever they use to bed the horses down with. It might even be free For people on a tight budget you could always ask neighbours if they minded if you took cuttings from various plants. That way your only outlay is for potting mix and pots (bet you could get those for free too - the pots that is lol) Then when you are ready to move in so will the plants.

Good luck with it all