According to my references the "White 9" was a Fw 190A-8/R-11. One of the aircraft developments undertaken specifically for Wilde Sau was the night fighter version of the Fw 190A. The choice was made to equip the aircraft with FuG217 Neptun J-2 or FuG218 Neptun J-3 radar with external antennas. After some experiments, an R-11 factory conversion kit was issued for the Fw-190A-8. it contained the radar installation with external wing-mounted antennae, underbelly 300 liter auxiliary fuel tank, additional flame dampers over the exhaust stacks and a landing light. So the proper question should have been how many of Rüstsatz 11 kits they made and attached to the A-8 Wurger. But I may be wrong.