I did consider what you had posted, however I too had spent some time looking into what would be a suitable laptop for my son who is going into 6th next month. I was disappointed when the thread was achieved as I was going to put an offer in as well.
Sean had a FS thread for a couple of screens, one of which I was interested in, I asked if he would in interested in a deal for both the screen and the laptop only to find out the screen had been sold off forum, I pointed Sean in the direction on my wanted thread should he change his mind.
The rest can be seen above, the laptop has been paid for, Sean should have put Windows 10 back on and posted today for delivery tomorrow.
I wish you luck in your hunt, perhaps a wanted thread may help, there is another XPS here for sale.