I commented on your final video but that’s buried in nearly 8k comments. I’ve got a bolt on TVC system I’d love to put on something like this. It’s aft of the nozzle and requires no engine modifications. You’d need two for roll control to get proper inclination launches. Let me know! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-FZTAW2r0bn4.html