l am like you Dave people ask about the best options and l agree but l am also dubious it doesn't suit every person unless you know theater history 😉
No, that's at your risk. You asked for advice. You can cancel it all and take that chance if you want. Or if you need help go private, it is your choice.
It's one of the worst voluntary grouos with loads of people with useless information and that's only trumped by questions by some people who need to look at the same questions with the same answers. Switch the lights out and go to bed
I've booked a 90 day return flight and a 90 day accommodation stay with a 60 day visa. No problem just tell the place you are staying (only if they question you on your passport date stamp) that you will be applying for a 30 day extention because they have to vouch for you on an immigration form (T30). But they can maybephone the hotel/owner where you're staying. Don't worry just do it. Or if you are concerned get a flexible flight ticket.