Re: rear sprockey alignment
i started with all of the bolts out inserted the cut half put on the second half and placed the sprocket over them. placed the half moons on then started the nuts by hand. Then i broke out the cordless drill with a nut driver and a box wrench. if you set the drill to the lightest amount of torque and tighten all the bolts to that you will have a snug fit and the same tension on all the bolts. then use a socket set with a mark on the socket and count the same number of turns or each bolt in a star pattern. keeping the sprocket centered on the hole is the tedious thing i spent about an hour lining mine up and getting it right. i have a high or low spot not enough to have a problem.
you got a little more than my 2 cents