If you havent got the cylinders off yet...
They will come off without removing the overstructure but getting them in you need to remove the overstructure. Remove the 4 bolts holding the 2 parts of the overstructure on, and theres 2 bolts at the bottm of the cross tube above the Exhaust facing to the left and right of the sled. Just roll it towards the front of the sled when all bolts are out.
Also theres 2 bolts holding the steering column on, remove those and turn the steering post so its outta your way.