[Elecraft] Rev B upgrade questions

[Glenn Maclean]

I have an older serial number K2 s/n 323. I am in the process of installing
the Rev B mods.

The instructions state for Revision XC only which to my understanding are
field test K2's. My RF board has Rev A 199 printed on it. I am finding some
of the values of components to be different.. For example: R1 and 2 on my K2
are 470 ohm not 220 as recommended. R50 is 1/4 watt not the 1/2 watt
recommended.Should I change these to the Rev B values???
On the control board it states for XC units to change C31 from 0.1 to .047.
My C31 is .0.1 (104) Should I change it??
Do I need to put the 10K resistors on RP2 pins 1-2 and 3-4?

Thanks for any help.
Glenn Maclean WA7SPY