Experience with Chaparral would cause me to try Sudco.Talk to a human to be sure they have all 6 to send you.Things I would definitely have for the job: 18 Allen head screws for all carb bottom screws from your hardware store; Intake o-ring set of 6 from
http://sites.google.com/site/valkparts/) from Red Eye Tech for $12.49; Desmog kit if you are still stock. Red Eye Tech ( I used the regular one for $15.21 but they now have other choices too). A good ratcheting compact/flat wrench to sneak in under the carbs and get those 18 screws out (I use
http://www.sears.com/shc/s/p_10153_12605_00930035000P?prdNo=9&blockNo=9&blockType=#reviewsWrap which is fantastic and I think every motorcycle should carry one (great gift too!) If your air cleaner is dirty have a clean one ready too. Consider dan marc electric shutoff, inline filter (purolater F10024) and maybe a pingle since you'll have the sometimes pesky air box out. Search "slow jets" here and read alot about it. Shop talk also has an article and if you are just replacing slow jets (usually all that is needed) with stock you can ignore carb adjustment and special tool needed. Not real hard!