Hi Rene, this is not an outdated question as the Inspire 1 is still a viable aircraft.
If you update the camera mount to the I1 Pro version you can add the X5 camera. After that you can use the Olympus 12, 17, 25 and 45mm lenses, you can also use the DJI 15mm lens that typically comes with the X5. You would also be able to use a couple different versions of the XT thermal camera. Let us know if we can help accomplish this.