Repeat for the lightning bolt, and drag both into register with the originals (snap to node will help to line things up) and then select the lightning bolt duplicate, and the duplicate 9 (the latter will have a dashed highlight) and do Boolean Subtraction:
Next, we need to notch the lightning bolt at the top — to do that, we’ll need a shape with the upper right edge of the counter of the 9.
Select the counter of the 9 and duplicate it and drag it back into registration with the original.
Draw a shape which encompasses the part of the lightning bolt which we wish to remove, select it and shift-click on the counter of the 9 and do a Boolean subtraction to notch it first:
Make one more duplicate of the lightning bolt, click on the counter of the 9 and shift-click on the duplicate lightning bolt and do a Boolean subtraction:
Unfortunately it is composed using SVG features (arrays) which Carbide Create doesn’t parse. The solution is to open it in Inkscape, save out as a PDF, then reopen and resave.
Then it’s just a matter of deleting what isn’t needed and Boolean unioning the stars to fix them and changing the red stripes from being an overlaid background, and the stripes adjacent to the union from being overlaid by it: