As long as it comes with instructions and torque settings, I can't imagine it's too hard. There are a *lot* of nuts and bolts involved, some big, some small, and all have very specific torque numbers. Some are hard to get to, so you will need an assortment of torque wrenches, sockets, and extensions. I remember this from when I re-torqued all the bolts at the 50 hour service. I think I had to order a couple special sockets and extensions.