Melted fuse block

I have a 2011 Sportsman 500 HO with a melted fuse block. The local dealer said the block was so corroded that it basically melted into itself. This atv has less than 800 miles on it. Anyway they wanted almost $1000 to fix it. They said that the fuse block is actually part of the main wire harness. So the whole harness needs to get purchased. Part is $450 and another in $500 in labor. Does anyone know if this sounds right? Is there ways around this. Some kind of in line fuse or another option. Any help would be greatly appreciated.