Your idea worked, I moved the feed as shown in your diagram and now the SWR LED is green. I had to remove the SMA jack for 10ghz to enable the 2.4 ghz feed to be properly fitted.
But now another problem, I'm not seeing my signal on the web SDR downlink. I have ample power and we know the dish is pointed correctly since I see the beacons and other stations. Am I possibly transmitting on the wrong frequency? My FT-817ND is on 432.2 mhz, the LO of the transverter is 1968 mhz, so I should be transmitting on 2400.2 mhz. An uplink of 2400.2 mhz should produce a downlink signal at 10489.7mhz, correct? Or am I miscalculating something?