Robert,
I was/am a big David Frizzel/Shelley West fan...my 2 favorites are the "Wino" song & "You're the Reason God Made Oklahoma". That being said, here's my feedback:
1)There MUST be a mini zoo/aviary for the natural supply of tying materials.
2)A casting range.
3)With 640 acres, there should be sufficient room for a campsite & a few cottages...for fish-ins.
4)A pond/lake of 40-60 acres is a "must-have" & of course will require a canal runnuing from one end of the lake to your home & continueing back to the other end of the lake. This canal should border your patio and deck so that you could tube, paddle, row, or motor to go fishing directly from your home. No long drive or walk.
Mike
FAOL..All about caring, sharing, & good friends!!