Starting my first scale Heli. Finishing up an Align 550X super combo kit. Have...

Starting my first scale Heli.
Finishing up an Align 550X super combo kit.
Have a Funkey Bell222 (not Airwolf scheme).
50/600 size. Most things are straight forward except how ill mount the battery. If stock mount, I’ll have to get access from front or improvise a mount.
Next foreseen problem is mechanical retracts that came with kit. Servo sync etc. I’ll be using either a DX7 G2 or JR XG8 DMSS
Question is are they worth messing with or suggest electric or air that will fit well. Could someone recommend a set of servos for the supplied retracts. Better yet, a reasonably priced set of electric or air retracts
I guess the first question should be is the 550X a good setup for the Funkey 222.
Any comments and help is appreciated..