RE: NO REPLY RECEIVED !!
From the Hobby people site:
Airtronics 93024 Module - Stylus 2.4G (Converts to 2.4G FHSS-1) $89.99 USD
Receivers are variable in cost depending on number of channels.
Airtronics 95051 Transmitter Battery - M8/Stylus 1100mAh NiCd $79.99 USD
I don't see a lithium pack for the stylus on the site though, go to hobbypeople.net and look around.