I've raised £5000 to Help with Solicitor, Court and Lawyer fees for Child Arrangement Case.

Hey. You know me, I never ask for help. But I am currently in the fight of my life. I am at the start of a fight in court over access to my son, who was living with me full time. His stable living arrangements are being compromised, simply due to his Mothers bitterness towards me. I can’t go into the full details on here obviously, but I will happily tell you all about it in person or via message.
My Solicitor has informed me that I need £1000 + Vat per hearing then at least £4500 + vat for the final hearing.
I have a very strong case and a lot of evidence to show he is better off with me as his primary parent, but trying to work out how to pay for my legal costs, is putting a huge strain on me at the moment, especially on the run up to Christmas.
I’m in the process of selling my work vehicle as it's the only asset I have, but this will only raise around £2000. (I’m not sure what I will do for a vehicle for work once its sold, but times are desperate!)
I am pleading with anyone who can help me in the fight of my life.
Any help will be appreciated beyond belief and will also ensure my boy continues to have the stable and structured upbringing he wants, and needs when with me.
Thank you for reading.