@JosieGL I get a balloon ‘frame’ for a photo booth each year that’s about 5’x7’ and it runs about $800. I’d assume the structure and labor for the balloons would be more expensive considering the size.
PSA: if you're trying to set up a time "just to chat" with friends and someone gives a set end time, don't ask why they're not free for longer or try to get them to pick a time when they'll be free indefinitely. Not all of us are built for long video chats/phone conversations!!!