Have a pest control plan, too. It is really a bummer to anticipate a large crop, only to lose it to insects or animals.
A lot of good advice from lambertiana and others.
As per lambertiana and myself,
pests are a real problem,
so be ready for them and keep ahead of them.
Deer love to eat trees and they will kill small trees (as will goats).
After trees get big, deer do less damage, however they will still
eat all low hanging branches. So, once you have a mature tree,
and you got fruit, birds and squirrels will help themselves.
You might need to reduce the squirrel population, in advance of
your fruit getting even near ripe. Netting, sold specifically, for
keeping birds out, looks promising. Birds, that I have seen, will wait
for fruit to ripen, then eat it in 1 or 2 days.
Where you locate, matters a lot.
Read some books about gardening and homesteading in
your selected area. This will give you specifics.
Books of other areas are OK, but there are such different considerations,
for Desert Southwest, High Plains, Midwest, South, and New England.
And there are relevant subdivisions within these.