The fly looks great! I would shorten up the flash a bit.Keep it about 3/4" longer than the saddles.
I have only a couple of Ken's saddles.They are great.however, there are a lot of saddles that can sub. Just make sure they are thin, and the length you want the fly to be.
Cabela's sells saddles under their name by whiting, cost $14.99.
Get Lt ginger and dye them yourself.
BTW , Ken's saddles are by whiting also.