Hi Elecrafters, Well, bliss has arrived here at the QTH. My adopted K2 is happy that I finally purchased some options to help it "stand tall" next to the 1000MP. In the mail today came the TC-PLL Upgrade, K160RX, KNB2, and KSB2. We would like to know from you experienced builders which order should we build these options; or does it not really matter? 73, Henry - K4TMC and K2 #3137