Hello Phillip: I completed Part III of your K2 SN: 2566 construction and it is working fine. I have to align the filters and install the ssb modification to flatten the IF response curve and then build the options. I plan to put it on the air this week and try it out under fire. I also have to install the internal speaker in the top and wire it up. I will start on the options tomorrow. 73 Jim Younce K4ZM