Hey Speed,
I'm obviously interested as well. I haven't done it yet but when I was at the Monroe WA swapmeet I meet up with a guy named Bob in Port Orchard who had done this so I had him talk me through the process. What he did was remove the original pin (push it out / drill it out), Then drill the hole larger and re-assemble with new larger pins. I believe he bought the kit from Jim Carter and the instructions tell you what size of drill bit to use.
Now lets hope our Stovebolt experts chime in, add more, correct me if necessary or inform us of alternate methods.
Greg