I may just muddy the wasters with this because I don’t have the exact model numbers but here goes. With the standard ClearCom body packs if all you are using is 2 stations you can get away without a main station, all you need is there special power supply. I don’t know the model numbers of everything but have used this type of setup on many occasions.
I just found this on ebay I have no affiliation with this sale.
Power supply
If it's just a couple of beltpacks, you can also make your own dc power supply and just add the proper termination when wiring up the xlr output jack. I have one buried in the stage rack for a private line between FOH and monitors.