I just did mine last season and here's what you need.
Go here:
http://www.suzukipartshouse.com/oemparts/a/suz/50d09298f870022e9cc419d8/transmissionRight click on the fiche picture and "save as" to your desktop then print it out full size. Once you got this you can use it as your guide, do note that it can get a little confusing as the picture is upside down and/or reversed compared to your trans if you have the left side case on the work bench and your building off of that. Which is how it was recommended I work and it went pretty good.
So once you get your mind twisted around which shaft goes where and goes which way it's pretty easy.
Build yourself a motor box out of 2x4's so you can prop up the motor and have the shafts stick out and the case laying flat on it's side while your working on it. Can't remember the exact optimal size but Interior dimensions are like 7" or 8" by 9" or 10"
Commandeer yourself a plastic serving tray from a fast food restaurant, this works great as a parts tray where you can lay your stuff out and keep it organized.
Get yourself a magnetic parts tray from Harbor freight to layout the little stuff so it does not fly away on its own.
And I take duct tape and tape my bolts in to a package in the order they came out marking the starting point so they go back just like they came out.
I know there are a few more tips more specific to working on the bottom end I just can't remember them right now...can someone else jump in here?