[member=11700]Tiva Diva[/member] has them, not that far from you. Not sure she gets on TAS much these days, I "see" her on Facebook. If she doesn't comment within a day or two, I can give her a nudge if you like - but I expect you know her yourself?
And [member=27513]AndreaSnowdon[/member] (near Hexham and a spinner) got Portlands to add to her Hebs, so if she sees this, she will be full of useful info for you
(I'm not sure she still has sheep, but she will have experience to share.)
Portland is a useful fibre - medium length, decent sproing, soft enough, dyes well, doesn't felt at the drop of a soap droplet. Lots of spinners like it a lot; short enough to hand card and spin from rolags, or can drum card of course. I don't think I've tried - or would try - combing it, it's a fibre for woollen spinning. Good for aran jumpers, things like that.
Nice-looking sheep too, and good for conservation grazing. From my experience years ago on a rare breeds farm, I think they often have just one lamb and are good mums, so are good to be left to get on with the job. Pretty fox red lambs
. Both sexes horned, of course, but you're used to that