Hi Sal,
it¡¯s funny that I came across your post. I just received a uBitx v6 and I just now (Literally 2 minutes ago) received an email saying my Universal case for the 5¡± Nextion, from amateurradiokits.in, will be here April 26th. I¡¯ve read a couple of articles and was just searching on this forum for info on installing a Nextion 5¡± display with the uBitx v6, that¡¯s how I came across your post. The only thing that I¡¯ve seen online, so far, is that you should install an additional 5v voltage regulator in the uBitx because you may damage the Nextion dislay if you only use the factory onboard 5v regulator, in case it can¡¯t produce the 5v needed. Also the volume control will have to be removed from the PCB to fit into the case. I¡¯m planning on installing an AGC circuit and place a potentiometer in the case for the rf control. I¡¯m also going to try and place a QRP ATU in the case along with building a circuit for the S-meter sensor. I have all these plans, I just hope I can find the and they all work out. If I find any more information out I¡¯ll keep you informed.
Take Care, 73
Robert, AG6LK