When a pylon plane is turning at a bunch of Gs, Cl is high, and induced drag is high. Induced drag is fairly high at these times. Takeoff and landing, for example, are times when we want speed to be low, which requires that Cl be high, in order to get enough lift. There are several flight situations that require high Cl. A good reference book is in order if you really want to do a drag budget before you build. If you have a bunch of linkages & gear, that stuff could easily be over half of your total drag. My top-of-the-head guess, which I would recommend you not take to the bank, is that the wing accounts for about half of the drag, if everything else is clean ( no gear, no exposed linkages, etc. A big chunk of the total aircraft drag is due to the wing, but I don't really know what is typical. Keep in mind that the Cl you will get from a real ( 3D ) wing will be a bit smaller than the Cl of the airfoil section. If you know Cl, I assume you know Cd from the same source. Drag is calculated the same way as lift use the formula that Daniel provided.
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