5yo birthday party - too much?

[Sussana30]

My DD is one of the oldest in the school year, so I am trying to be organised and get her bday party booked / planned ahead of the summer holidays so we can hand out invitations as soon as school starts in Sept.

She'll be starting reception & as it's too soon for friendship groups I'll invite the whole class. Plus a few of her friends from nursery and cousins who live close by. Would estimate about 35 kids plus parents.

I'm planning to hire out a large church hall, get a bouncy castle and some soft play bits. Will also do a crafts table, glitter tattoos and do musical statues. I think there will be too many kids for the other classic games. Will probably do a very simple party lunch.

Does this sound like it's going to be a disaster, having so many kids? Will they be occupied for a couple of hours or should I try and reduce the scale of this? Or add things for them to do. Any advice appreciated.
She's my only child so I'm completely new to school age bday parties.

Also had no drama at whole class parties, but in reception the assumption for the first half of the year is parents stay, and then make sure they hand over phone numbers before leaving. (My youngest is only in year 1 so pretty recent!)

I would say keep it as simple as possible and by the time you've bought all the craft stuff + hired a bouncy castle, you would probably spend as much on an entertainer, and that's pretty much all you'd have to do, don't bother having second tables of crafts or activities or tattoo nonsense, all that will do is distract the children who otherwise would be engaged with the entertainer's games.

I'd agree with the people who say hold off. Do something amazing as a family because from next year on there'll be expectations!!!