I am just getting started in bonsai. Just received a profusion crab from a friend, still in the 1 gal. nursey pot, and am planning on getting it started as a bonsai shortly . It has well formed nebari, 3/8" dia. sticking above the ground. Was going to plant in the ground in a 5 gal. bucket but not so sure of doing that now. What i need to know for now is how far down can i cut the trunk and still be safe to start fattening the trunk?. Its almost 2' in dia. The tree is now 8' tall with the main trunk forking a little over 5' up. It has several limbs below the fork but is bare of limbs about 3' from the ground. I was thinking of cutting it 1' below the fork and starting from there but if i can cut lower it would give me a big jump on staring my first or second main branches. Any suggestions would be very much appreciated. Thanks
Here is picture of the whole tree
This is the nebari.