I do happen to have 3 of the rebuild kits in my stash, but not looking to go m739 on this build. Could go m950 as I have a spare set of brakes. Only toying with xo at this point, was planning on m952 but the xo would tie in with some other bits planned, so exploring brake options. Black is preferred, could even go kcnc as I have a set doing nothing. Levers are a bit light for my liking though.