jvance,
Although I no longer build the Baron, but I am prepared to the King Air to start to build,..!
My Baron is now in the winter storage, no flying weather here anymore..!
I have used a CNC engeneered Motormount, but the Great Planes adjustable mount also should work pretty well
Pay attention to the downthrust, 1-2° is not to bad !!!
The nacelles will give you an idea, if you look closer !
Sidethrust doesn't seem to be necessary..
The lighter you build, the better to land !!
(Micro Servos HV,f.e.)
Cheers
Martin