I wish that all your dreams materialize!
50 acres - 20 hectares it's a lot of land, it is going to be incredibly difficult to manage. As time passes you will figure out what better fits the quality of life you desire.
Have you thought of a tea business (dehydrated fruits and herbs)?

• You build a solar power greenhouse/ dehydrator (down draft ).
• You use 90 % perennial plants.
• use electric nets and put sheep to graze the grass before picking the fruit.
• dehydrate everything and sell boxes that contain all the tea produced in that year. This way if something goes rong with the apples you still have herbal tea, blackberry tea, blueberry tea....
• 20 meters spacing between the rows of trees
• you put rows of forest berries between the rows of trees
• put the nitrogen fixing plants ( not shrubs ) and nutrient accumulators on the north side of the row
• plant mint,hardy lavender, roses used for jam, marigold, and other perennial herbs used in tea on the south side of the row
• use a bcs with a flail mower to periodically chop de plants on the north side of the rows
• do dense and close together windbreaks.
• use the heat reflected by the ponds to make a microclimate for the seabuckthorn otherwise they will grow very very slow.
• and so on
  I really hope i was helpful.