In a mainstream school and won't get an EHC plan as making too much progress academically
That's not true. If he has additional needs he can have an EHCP assessment, if the LA agrees. If you want to take this route, you can apply for the assessment yourself without needing the school's support or approval. You just contact the LA's SEN team and start the process.
Have a look at the SEN COP 2014 here. Section 9 is about EHCPs but it's worth reading other parts too, for background.
Also, you could still apply for EHCP and HE at the same time. If you got the EHCP you would have that security if you ever decided to return your ds to school.
If you do want to use tutors (and I agree it probably isn't necessary right now, at age 10, but you might want to as he gets older), you could consider using student tutors if you have a university nearby. I have had some excellent young people working with my son (AS/ADHD, age 16) for a few years and I get them through University Tutor, though there are other similar agencies you could use. I've found students to be much more flexible in their approach to working with children - they are keen to have experience on their CVs so will work to my specifications rather much more readily than longstanding NC qualified teachers. I've never paid more than £15 per hour (and the occasional bacon sandwich
) and they've got ds through some challenging exams. It depends on what you want though. Maybe have a browse on some of the tutoring sites and see if you think it's worth doing.
I would expect that your son's anxiety will reduce quite quickly once he's out of school, if this is one of the main triggers. You could find that you're thinking in a different way six months or a year down the line, as his temperament improves.