Depending where you are looking at Baswich the line goes through a cutting on the eastern side of Baswich lane so that should muffle some of the noise.
I once lived off St Leonard's Avenue which is a comparable distance at a guess and train noise wasn't an issue there.
A similar consideration to take into account in choosing a location in Stafford is the noise of the M6 which is more constant than train noise.
I guess people get used to ambient noise after a while so unless you're a particularly light sleeper I wouldn't worry too much about the train noise to be honest.
I lived on Porlock Avenue for four years in the 70s and don't remember ever hearing a train.
The motorway and general road traffic noise is the main ambient external input, I find.
Baswich does have a plausible pub/café now, on Bodmin Avenue. In my day there was the Crossbow, which was not for the likes of me...
If I was subject to a court injunction requiring me to live within Stafford, but in an area of my choosing, then that corner would do - Baswich, Walton, Hillcroft Park.
The soil in the gardens is not always great, it can be very gravelly.
Traffic into/out of town at 'rush' hours can be a bit of a chore. No worse than the rest of Stafford, outside those times.
Someone I know who had a house near the railway had a bizarre 'postcode issue' with his insurance over an alleged flood risk, despite there being no chance of the house itself being at any risk whatsoever., this side of the end of the world.