Dave, the FCC version is the one you want, this is the “International” version . The LBT version is for EU contries only (a different standard).
Unfortunately you cant use the R161 as suggested by Gerald unless you get a different (more updated) flight stabiliser.
The R161 is SBus connected & the FY-41AP stabiliser does not support an SBus connection.
The RadioMaster R168 receivers are out of stock (again) at HK.
They are available here
https://www.rccrewhobbies.com.au/radiomaster-r168-16ch-frsky-d16-compatible-pwm-rec