Yes it is a bit far really, plus she the horse doesn't hack alone (I think thats what it said - I've seen so many I forget which is which!)
Quotes from the advert: "Ride/drive. Good to do in all ways. Hacks out alone and in company. 100% on the road, never spooky."
"She is very forgiving and will give confidence to any rider. She is never silly or strong."
"Hacking is Kerry's strong point, nothing phases her."
"She is the same on her own or in company."
I know she might be a few hours away but she sounds ideal - at least worth a phone call? I scoured the net for a while last night and this is the only one I found that seems to tick your boxes. And the advert is huge which generally indicates the owner wants the horse to go to the right home so is less likely to spin you a line.
Good luck