Here are 4 extra risers with necessary hardware to add an additional 10mm of spacing to your backplate. When combined with the 4 risers included with the plate, you can achieve a full 22.5mm of spacing--which is enough to place both the native LP-e6 battery and  SSD holder into place behind the backplate.
 
The XLCS Backplate already includes 4x 12.5mm risers.