from what I understand ,they don't make the expo kits anymore (but some folks still have them at cost) and IM not sure about the galaxy kits ? The pll that is in that radio is basically useless other then for the regular 40 channels , you can change the pll to another but even then the clarifier needs to be modded for at least a 5 KHz slide to get the 5s with pll change, as I said , the radio is very close to the 146 Cobra ,and simlar to the PC-122s , it's pretty much the same deal with those radios as well when it comes to extra channels added, either a pll change or kits added. That's a nice radio Chong as I said before , it's not the best , but it is a good AM/SSB radio. It's possible that I might be able to get you a Galaxy N Kit for your radio for about 20.00 shipped , but I'll tell you right now , you will need someone that knows there stuff when it comes to the install of this board and to have all the right tools to do so.