You should get a fairly good ADSL2+ connection there, sufficient to make it worthwhile getting Annex M for the upload. That gives you "up to 2.5Mbps" upload instead of the normal "up to 1.3 or 1.4Mbps".
There is a download speed cost, which as a rule of thumb, and looking at the Annex A downstream
connection speeds, loses about 2.5Mbps from 16Mbps for a small upstream gain, on a curve up to 19 or 20Mbps Annex A where you can lose no downstream and get over 2Mbps up on Annex M.
My short list would be Be or Sky, both LLU, but I don't think Sky do Annex M. BT Wholesale ISPs, (ie most), can now provide Annex M, and the new DLM isn't anything like as interfering as the old one was. On good lines it even automatically drops the sync-time noise margin to 3dB, like the Be user setting.
The only unlimited I know of on BT Wholesale is BT itself. On that there is P2P throttling when deemed necessary by the load.
Sky and BT both require you to have the line rental with them.
It doesn't look as though you can get fibre there

.
My broadband basic info/help site - www.robertos.me.uk
Domains,website and mail hosting - Tsohost.
Connection - Plusnet Extra Fibre (FTTC). Sync ~ 56.0/13.9Mbps @ 600m.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.