... build a throttle system?
I plan to build such a console with the design of Dornier Do328.
It will contain throttle levers for both two engines, the propeller conditions for them (also two levers), a parking brake lever and a flap lever.

I believe I know how to construct that thing, and how to build the levers up, but I dunno, which hardware I need, to connect all the Potentiometers (I guess those are used for the levers?!) to my compuer.  I want to be able to conect it per USB to my computer,
and manage the levers within the Axis menu in Flightsim.
Here's a part of the AOM, where I labeled the parts in red:

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Well, and there is another question I have.
As i want more than just a throttle, I am thinking of making the overhead panel also.
At a local Electronics store (Conrad) I found switches which would be just perfect for this use:



More info about this:
Details

How do I need to connect those to what harware, which needs to be connected how to the computer?