I am not sure I would do that conversion, but so be it.
As for the sights, Dawson is the ONLY way to go, depending on your application.
I have the CGW exclusive, and they are pretty good for slow target shooting, however, I find the narrow front and deep notch rear "meh" for fast action, rapid target acquisition.
I am thinking of getting a custom rear done. Very narrow and very shallow notch, say, .130 wide and deep, and a .125 wide front.
I would almost like a solid rear with a .130 hole drilled, and the .125 front.
Outside of that, I have the stock Trijicon set in a bag.....hate em.