VariEze Roll Trim RC Servo Replacement

[bmckinney10]

Is there a known drop in "available" RC servo for the roll trim to replace the original (obsolete) KPI-15ii servo?  I had the long half of the control horn snap off and cannot get the small center screw on the horn to come out.  I moved the control rod to the short side, but cannot get enough throw.  I assume I will break the horn completely and have to then cut the old servo out.  At that point, I would plan to replace it with a comparable, available servo and hardware.