Got this new/used F bomb suit! It's a back zip and I would say I am at the upper limits of the sizing. It's a xxxl, I am 6'3" 270lbs. When I get it around my shoulders, the fireskin isn't attached to the velcro and it's about my mid back area way out of my reach. So far the only way for me to get it fully on is with another person. Does anyone have any tips??