Yes, it's been done. Sam Alvarez used to do that on some of his builds, very much like what GSG described, and they came out beautiful. I always grind that extra piece off the rear sight brackets, but these are mostly loose brackets I had acquired. I so rarely have an Izzy LSP in the house, this is not something I deal with regularly. But I have done all the steps listed above, and the results can be quite acceptable. The other option is to buy a new LSP from Halo, swap the cams from your Izzy plate, and as another option buy a new Belt Holding Pawl Bracket from moi. But that is a much more expensive way to go. If you are willing to put the time in, you can get a good result by modifying your Izzy plate.