It's an intricate job but I really enjoyed it. I had Mike's booklet, and the rebuild kit from Randakk.com which has gaskets, o rings and other assorted gubbins that are considered amongst the best you can get. Followed the booklet to a t - I dismantled the rack as well which made getting to the air intake valves a breeze (but hooking up the throttle and choke linkages at reassembly was a little tricky, but totally do-able). Once off the rack I soaked each carb in a Pine Sol bath for about 48 hours to get all the crap off them which really worked, and then got to work with the brake and carb sprays that Mike discusses in his booklet. If you do the Pine Sol thing (get the Original, not the scented), be sure to first remove the accelerator pump housing from the bowl on carb 2, and the vacuum petcock thingy that sits on the rack between carbs 3 and 4. These two parts are made of some kind of pot metal that does not like Pine Sol at all (I found that out the hard way).
Took tons of photos as well which really helped, labelled the heck out of everything and worked on one carb at a time. They came out really good (I hope), but as my bike is now almost totally broken down (just need to pull the engine out of the frame - today's job hopefully) I haven't been able to run them on the bike. Need to bench and vacuum synch them but that's for a later date.
Good luck bud