With the carb inverted the flange to top of float but not the metal tongue is .51 +/- .04" or 13mm +/- 1 mm. By mixture screw I assume you are talking the pilot screw and that setting is to be learned by turning in prior to removal. Are you going to go with the extended version, that is available from www.kientech.com
. Jesse is a great guy and could also help you with a spec setting if you need one.
Specs quoted per the '97 Suzuki DR200SE service manual.
Also check out the Minimalist Tourer (250cc and under) thread for more on the DR200SE and other bikes.