I think it is a superb, well-prepared and well-thought-out proposal and should be something the whales get behind. Sadly, Hive suffers from apathy amongst its smaller stakeholders leaving its large stakeholders to basically control the whole shooting match.
I desperately hope you can get this proposal through, might I firstly suggest asking @valueplan to assist you with funding and secondly, aggressively lobby the whales around discord. Also, perhaps ask Splinterlands to sponsor your venue. Surely they have a little change out of the 2780HBD they are being given.
Best wishes and good luck. I've seen the post, your place looks amazing :-)