My trailer has 3ft sides with a top rail and I would like to cut it down to like 1ft all the way around for better access.(hope I explained that right). And would also like to put a side ramp on the left front side. I have a friend that has done some light welding for me, he welded my trimmer racks to the trailer. He did a good job but, would this be a job to take to a pro. welder? Or would this job be not that difficult?