centre of gravity on canard delta type aircraft

Hi all,

I’ve designed and built a lot of conventional radio controlled aircraft few years ago, and always knew how to calculate the position of the centre of gravity, as it was very straight forward.

Now I’m thinking of getting back into Radio Control and would like to build a cool delta canard, being the Eurofighter, Rafale, JAS-39 Grippen or MIG-1.44 etc.
My problem being I have no idea how to calculate and where to position centre of gravity on these type of aircraft and or how to couple the canards to the rest of the controls.

If any of you guys knows about this or have any usefull links with information or diagrams regarding above, would most certainly be greatly appreciated.

Thanks in advance if anyone can help.

Regards LoveMigs