cut out the middle of the OEM plates and bolt that to the OEM plate
you just drill the oem plate and countersink it a little for some flush head bolts.I've thought about it. But it would probably take away from the either the OEM plate or the camber plates strength.
Here are more pics for reference
Well as usual your right , on my to return these to the post office and decided to see if the strut tower had the clearnence. A detail that I never thought of for some reason. I can utilize a 4 bolt setup for the plate to body and drill the stb brace but leave it as is. Should be a super strong setup.you just drill the oem plate and countersink it a little for some flush head bolts.
keep in mind the weight is all gravity, and cornering loads are at the end of a long lever (no leverage)
i just know that the oem strut tower has plenty of meat for you to drill 3 or 4 new holes closer to the strut centerline (within the dia of that plate)
it would be real easy for me to water jet that out of aluminum