Dear All Swallow Owners,
Thanks a lot for everyone for adding much on the topic.
I have almost assembled my model. Rgearding CG, I have installed 2 Hi-Tech 225MGs on the elevator just like Mike did! Model is extremly good lokking rather I will call it "SEXY"

Now what I have found is that there is no built in thrust on fuselage front former. I have installed the engine at 45 degree so I got the silencer right under the nose belly. I have inserted one washer each behind two ends of mount, question is that how you people manged to give the right thrust & how much would be sufficeint!! As I need to adjust the spinner back plate & cowl fitting accordingly.
At this stage I am pretty sure now even from the look of the model, that I have bought the right stuff & it WILL perform by ALL means.
Best regards,
Sunny.