To make it fit the tractor he will have to shorten the lift and bucket arms. Easiest way would be to cut them back at the support brace and weld in new brace plates. The lift cylinders will have to drop down a little on the upright arms and the bucket cylinders will need to ride up a little higher on the top of the arms. Will also need a sub frame. Sounds like a lot of work but a welder can do that pretty easy if he does not weld himself. That would make the loader a lot more functional and let the loader lift more weight with less stress on the tractor.
From the front of the tractor, how far (inches) should the bucket be if the bucket was sitting flat on the ground? Measuring from the back of the bucket to the front of the tractor frame.
Thanks