Hi Mr mcapone888
Look, i dont criticizes your solution, but, it is not possible to state any result in a short cipher like that, innumerable solutions are possible.
Look at the link:http://zodiackillerciphers.com/wiki/index.php?title=Z13_Solutions

I believe that, if there is a solution, it should be derived from the 340 and 408 keys, in fact, I think it is a code and not a cipher.
anyway, you are free to do your thing
my best regards

Marcelo