You really need the basic stuff. I highly recommend a hand held impact driver to get the screws off the top of the carb. I got one at harbor fright for about $5 and it really made the job much easier. I also did not take the carb off, I have seen where many did it that way, but I figured the less I took off the less I had to put back.
#4 washers are the standard, but when I bought mine they would not fit. I ended up taking the spacer to town and gtting something that matched up, I believe it was a #4 nylon. There was a discussion about the inconsistentcies of standard sizes somewhere.
Here is a post:
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1234477683/0#0