Reception and ceremony under same pavilion?!

Hi there! Soooo I have some concerns about or ceremony/reception. Our original plan was to have the reception and ceremony under the same pavilion. However now that we’re about a year away I’m having some concerns. We planned on having the ceremony under the pavilion set up with the chairs, then having the tables/decor outside of the pavilion for easy access to flip. We were going to have the bartender and some snacks set up outside of the pavilion for guests while we take pictures and set up the reception, all in an hour or less. The wedding is at a park so while I’m sure some guests will wander around while we’re setting up, some of them (especially the older guests) aren’t going to want to wander around under the August summer sun for an hour, and I don’t blame them. My parents however think it’ll be quick and easy to flip, but I’m just not sold on the idea. I don’t want guests standing around watching us set up, and I don’t want them to feel uncomfortable by any means, which is why I’m stressing about this. I discussed with my mother about possibly setting up the ceremony somewhere else at the park and leaving the pavilion set up strictly for the reception so guests will have somewhere specific to go for drinks and snacks while we take photos after the ceremony, but she thinks it’s unnecessary to have the ceremony and reception in different areas of the park. Am I stressed about nothing or should I look more into moving the ceremony elsewhere? Another concern is money. We have planned this wedding to be under $5k and so far so good, however moving the ceremony elsewhere would mean we would possibly need to rent another part of the park and that would also mean the possibility of us having to rent another 100 chairs. HELP!