Yuck.
There is (I think) a third hole that the VVT motors use for their compressor mounting, up by the circled bolt in the TTI mount. Not that it is any more useable.
Couldn't you cut the part off that the biscuit bolts to and slide it back on the plate like you plan to do on the PS side? You would also have to relocate the mount on the k-frame to match of course. But might that give you room to at least use the mount close to the oil pan? Just an idea.
I'm liking the Schumacher mounts more and more. They don't use the same holes and might even leave the bottom mount clear.