Because I love to eat, I will analyze the ones you mentioned below.
Brazilian barbecue is a buffet, 48 yuan per person, the environment is good, is a good place to date, but the party is best not to go to that, because that is a one by one, 4 people small table, small table are also grid grid open it, there are a few big table is also far away from the environment, I feel that is not suitable for so many people's classmate reunion.
Guang Zhen Lou is a Hui Min restaurant, the food asked good, delicious, exquisite, but not affordable, you want to eat a few friends good time to go to that line, the party to go to that a bit of a waste. The general class reunion did not Hui Min time is not to go there.
Da Qing Hua dumplings I have not been, should not be Qiaoxi right? I don't think it's a good idea to look for a place that's so far away from the first high school for your first high school reunion.
Don't even think about the Real Estate Hotel, it's just not the right environment for a party.
Actually, I think the best place to get together in Qiaoxi is the Nongjiaoyuan, where all of us from the Fifth Grade go, but since you're looking for something new first, think about the Tongjude and the Mingdu.
If a table of ten or so is priced between 250 RMB - 400, you know it's easy to overspend at Tongjude. Mingdu is our home base, the food there is nothing new, but it's definitely cheaper than Tongjude, I don't know if there's a room for 40 people, if there is, we recommend you to stay at Mingdu, if not, Tongjude is not bad.
(You are the organizer, grasp the expenses, generally only eat without singing, then charge men 50 women 30 or men 60 women 40, boys are very drinkable. Extra money can also go to the print store to do a class of classmates address book or something)
However, this is all my experience in organizing the party organization out of the experience, there are any questions you can ask me.
Purely hand-typed, good luck!