to even be considering this (private school related)?

[pickledsiblings]

40 minute drive to a Park & Ride

20 minute bus journey

10 minute walk

Would I be insane to consider doing this with my 7 year old as a daily commute/school run (and the reverse journey home again)?

School is a-maz-ing and just 'round the corner from potential new job.

[alpacasosoft]

It doesn't sound like any of this is logistically possible pickled unless you move to Cambridge nearer your prospective job so that you are not commuting so far.