you have had answers you just do not seem to like them.
All you can do is present your evidence to the police and see if they consider that there is sufficient to ask the CPS to reconsider prosecution.
The company in my first link will look at your evidence and if it looks viable will help you present it to the police , read it!.
However it will cost you around £250 an hour.
Despite your 'extensive research', in reality the prospect of getting you costs paid by 'court funds' are very low. The entire funding structure for criminal cases has recently been changed and massively reduced, you stand next to no chance of getting a case like this funded . So you are going to need at least £50,000 just to start the case.
Remember 'The Law , like the Ritz Hotel, is open to all! You just need the cash