You cant spend £750 per person on staff entertainment and write it off for tax purposes. You would have to fill out a P11D. I'm a qualified Accountant but don't take my word for it https://www.gov.uk/expenses-benefits-social-functions-parties/whats-exempt
They have stopped client entertainment as being deductible haven't they? Unless you could make it is marketing, like when business do with their racehorses
I used to attend sportsman's dinners and put it through marketing!! Table of ten many times, even had John conteh sit with us when he was the guest speaker once!
They’re priced like that to price out the regular punter, it’s definitely going to be an exclusive event for the elite.