AFAIK the only differences between internals on the GL as opposed to the CXs is the Accelerator pump.GoergeFix's kits are excellent value and I've just sent for some for some spare carbs I'm going to service and sell.
So you can use a standard carb kit for your float type as well(Metal/Plastic or all plastic?) as the float needle valves are different.
The ACVs are the same and they can be got off Ebay or Wemoto,
http://shop.wemoto.com/as can some of the basic kits.I like GF's kits at they come with new jets as well as all the o-rings and importantly new Idle Mixture screws.
However depending on the state of the internals I've re-used a lot of o-rings so long as they have not perished or been damaged.
So
CX carb kit for your float type.
CX ACV kit.
GL Accelerator kit.
Note:ACVs can be bypassed with no ill effects.
You can contact LRCxed(Larry) to be certain and introduce yourself and say I asked you to check with him.
However if you are not actually having any problems and are getting good fuel mileage then why bother?More important to balance the carbs IMHO if they are running well.Also adding some UCL(Upper Cylinder Lubricant) like
http://cgi.ebay.co.uk/Redex-Petrol-Injector-Fuel-System-Cleaner-250ml_W0QQitemZ200342933402QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item2ea55e8f9a&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1683|293%3A1|294%3A50To the fuel from time to time will help lube and keep the carbs clean.
In line filter is important as well.