Hello everyone, I am getting ready to remove two flowering crabs and install two new ones. The old ones have like 8" calibers and the ones im installing are going to have a 2" caliber. I am going to give this complex a 1 year gurantee stating if the tree(s) die within the a year of the install date they will be charged the wholesale price of the tree and we will supply labor and materials. The tree costs me 158.00 and im charging 250.00 installed. Im charging 400.00 for removal of the old, am i in the ballpark? Is there anything i should look out for? This is my first tree job so im being cautious, thanks.