From parents who have a child at private school (we stopped at one to be able to afford this and it isn’t easy) the only thing I would say is to be careful what’s included.
Uniform, make sure there is help with this it is hugely expensive, our son is only in the pre prep and the uniform cost hundreds when he gets to just prep it will run to even more, just the blazer is £100 and they regularly get lost, and the pe kit is huge just the regular tracksuit for a 6 year old is £80 and then there is the football shirt, cricket kit, rugby kit, the sport thermals etc etc etc it is a never ending list secondary school is even worse.
School trips once they get to year 5 they are generally over a £1000 each and there are a few a year they are mostly optional but difficult if their friends are all going on them.
Parties are also expensive our child goes to just a regular in the country not over the top private school. You probably need to spend a minimum of at least £10 per present but really a bit more and I know this gets higher as they get older and parties generally are around the £400 mark or more.
World book day you get a letter saying your child can choose any book from the book stall plus they will get the book from the visiting 1 or 2 authors and the cost of all the books will just be added to your bill another at least £20 plus the costume for world book day.
They decide you child needs a little extra help in one area then they will be sent to the learning support teacher but that again will be extra £30 a week.
All the kids are learning a musical instrument and your child really wants to learn the guitar/drums/violin like his friend little Jonnie that’s another £25 plus instrument, plus music books, plus exam costs.
End of year can everyone put in £20 for the teacher’s present, we are doing this stall at the Christmas bazaar again all need to put in £20 for set up etc etc the list goes on the school reps will keep asking you for the money just assuming you can pay.
You go to your child’s nativity there is a collection at the end for whatever charity.
It just keeps going on and on.
The bursary your son has got is amazing and I don’t mean to say it isn’t he has done so well to get it, just from our recent experience we have been shocked how it isn’t just the school fees it is everything else that they just sort of assume you will pay for so worth checking what is included with your bursary and be prepared.