The cockpit can be fitted with two Saitek pedal units (PIC side and Co-Pilot side) and likewise 2 Saitek Yokes will fit on the Yoke boom arms directly without modification.
A Saitek trim wheel could be attached to the side of the pedestal (Just above the floor, like the real thing).
A throttle quadrant will fit and share space with the mouse on the top of the pedestal.
Saitek switch panels and radios can be mounted on the bulkhead beside the main large virtual cockpit monitor. Unless your main monitor is enormous (40″ or larger) there is plenty of space on both sides.