do you want a slewable cockpit camera view? IE you you want to be able to look around inside the cockpit?
for a slewable view, you need a 3 model of the cockpit interior as part of the scene. for a non-slewable view, a 2d UI is sufficient. the 2d UI can be a pre-renderd cockpit view, or just a HUD, or whatever you want.
if you don't need slewable but want the stick to move etc, use a combo of 2D UI for the static parts and 3d meshes for the parts that move.