You're welcome. What I like most about it, is that it's a sort of 'essential Harry' and 'essential Severus' meeting each other, with the childhood baggage they have in canon but without all other drama and the teacher-student relation they have in canon as well.
It is as if you have extrapolated their non-magical childhood to a non-magical adulthood completely true to their character and personal circumstances. It's quite believable Snape would rise job wise above the position his father had at the mill, but would still be in the working class environment he grew up with, with nobody and no institution offering him any incentive to elevate himself into a different social class. - although his reading habits show he still is thirsty for knowledge. I am so happy though he managed to get rid of his fathers contempt that was still lingering in his head.
As for Harry, it's clear he is equally damaged even though we see things mostly through Severus' eyes. But it's so heartwarming to see they are now able to support each other, IMO just because they don't have this shared history they have in canon.
And it's so nice to see all the subtleties you have woven into this story. How important the trust in letting your hair cut can be to counteract a bad childhood memory. How a weekend trip to the wonderful Brighton Pier (well, I suppose they went there to look at the sea) is more meaningful than whatever holiday experience out of the country would be.
I am intrigued though about the time in which you have situated this story. To me it feels somewhere non-descript that could be in the late seventies but also in the early nineties (I exclude the eighties because of all the strikes and the unemployment). It seems to be quite normal to heat your house with coal, and I don't know if that is still the case for people who don't have central heating. But to me it feels earlier than the canon timeline, because then it would be in the late nineties and I haven't found anything pointing to technologies like mobile phones or cd players.
So as you understand it really is a story that keeps me thinking a lot. I am glad to hear it's not complete yet and I hope more inspiration will strike soon :)