The trunk lights are not bright enough wanting to remove the block off plate and replace with a light. The vtx1300C looked like it could be made to fit but wasn't sure. The 1100 shadow appears to be close.
the shadow ace is the exact light. Go on ebay and type in honda shadow ace brakelight there are many under $50.
That is true, but, you will have to change the way it bolts up. It is just a matter of cutting off the mount bolts, and bending the bracket to make it work with new bolts.
Or, you can order the bracket from a standard/tourer and use that one.
I have done it several times, it is a very easy mod.
Jim