Toby,
Thanks for the in depth reply.
I will have to live with the stock hammer, as they are out of stock on new sears.
The SA trigger pull is "acceptable" , only wanted the race hammer for the flat top,, the stock round is harder to manipulate.
I will probobly drop the idea of reducing the take up also, and concentrate on a "old style trigger" and short reset kit,, along with some of the other things you listed.
Many thanks
Nick