Here's a direct link to the IPL download:
http://bsintek.basco.com/BriggsDocumentDisplay/Z6ntzHVJ1DajI.pdfAVB has listed the individual parts needed by carby section; but if you don't get 'P/No 394698 Carburetor Overhaul Kit', you'll need to buy a '221997 Plug, Welch', as removing the old plug will damage it.
The choke shaft is likely to be OK, but it has to come out in the process of removing the venturi and then the throttle valve and shaft.
You can work out which bits are in the kit from the IPL - they have a 'bullet' [�] symbol against the part numbers.
Just a caution here; if there is significant wear in the throttle shaft bores in the carby body, it's not repairable with factory parts.
Briggs have never supplied replacement throttle shaft bushings for the one-piece Flo-Jet carbies, AFAIK. In fact I don't recall if those ones even have bushes, like the older 2-piece Flo-Jets did.
But you will have to pull the throttle shaft to see where the major wear is.