5 ft tall 2" diameter trunks 2 foot root ball, Your going to need some top pruning..I would say 30/70 maybe less 10/90

What do you mean by 30/70 or 10/90?

Suggest rate 30-10 in your favor 90-70 against. Relocating a tree that size with a 2 foot root ball
Is going to take a big hit on the tree, I feel a 30-10 chance of making it would be in your favor a 90-70 is against you

A tree of that size in relocating is not all that great with a 2 foot root ball

You will need to top prune, because you would not have the root mass

Your best time would be in the early spring, before the growth begins

Transplanting is best done in Florida right about now . This will give the tree several months to go dormant with leaf growth but continue to grow new roots . The tree will be in the ground 6 months or more by the time our brutal heat hits in May . Water frequently and cross your fingers .
Why not try it ? If you lose the tree you can always purchase another one . Try posting this question on the Florida Forum .

I want to transplant an orange tree 30 yards away. tree is 7 feet tall and 6 years old. also i want to transplant angrapefruit tree that is 4 feet high and 6 years old. When do I transplant and how much do I cut back on the tree? thanks Jesse weller