We have to have the front plate. As you can see, my plate frame has an orientation problem because of the location of the holes. I'll have to figure something out to remedy that. The stock frame has large square shafts where the holes could have been drilled.
That is the stock bracket modified. There is an entire collection of How-To posts in this thread, see post #14 for your info... there are other posts on this subject that you can find using the search feature as well, including one with a template here. Have fun!