this is a fantastic idea to use technology to gather us together. I watched many of the recorded GQRP presentations - they were indeed presented live -- and a moderator (they may have used a different one for each presentation) took questions at the end - they spent a lot of time with dialog.
if you make it too fancy it may fail - so go simple with the approach. something like zoom allows everyone but the presenter to be muted (great idea!) and then use the chat window to take questions. if audience is well-behaved then consider unmuting everyone after the presentation.
somehow offering an open house to let folk interact is a nice touch, but format needs some thought.
while you all will miss being in Branson live -- its a long trip from the east or west coast.
73 Curt wb8yyy