Great post !
On my Blues King I've change nut and bridge to bone & pins to ebony. The result is a better sound and a bit bright.
As string now I'm using Martin SP Phosphor Bronze 0.11 / 0.52, they are cheap, good and easy to play (I suffer a problem in my left arm due to a car crash and I do a lot of bending playing Blues).
I've tried pure nickel strings with round core and they was very nice and easy to play too. Is hard to find them with the wound G, only on a german web store in Europe I've found the Pyramid Classic .011 / .050 but cost a lot of money.
The pick is another story. Yes is a cheap solution to change the tone, now I'm using Gibson x-heavy picks for hybrid-picking and they are good enough for light strumming and the sound is less bright than for example the classic Fender Heavy 351 shape.
Thank to all. have a nice day. Rico