AA route planner has a 36 mile journey in 47 minutes from SC to Newport.You can double that in real time during peak periods.Would you be able to relocate in due course ?
I know the 'journey' as I did it when my DS sat the exams at Adams a few years ago while we were living in Sutton Coldfield (in the 'era'
when parents did not know the results when filling their CAF form).
It was our last choice before the comprehensive school on our CAF and I was ready to relocate
if this were to be the GS my DS would be admitted to.
If you pursue the idea of writing this excellent GS on your CAF, enquire properly about the boarding option in the eventuality of your DS going there... or, as Quasimodo advices, relocate. In my humble opinion, it is easier for adults to bear long commute than children!
Hope this helps.