Thank you for your very useful overview.
As we are all believed to be on Exchange Only lines, i.e. connected directly to the Bermondsey Exchange and not through a street cabinet, pending any future roll-out by BT Openreach of their so-called “network rearrangement” plan in our area, whereby a fibre-enabled cabinet would be installed between the exchange and the property, I think we can disregard any solution that involves a fibre to the cabinet (FTTC) solution, as far as I understand it.
Also, because of the (relatively long) distance between the property and the Bermondsey Exchange, advertised speeds for traditional broadband are very academic in most cases; e.g. we are achieving our current 0.5meg on an “up to 20meg” plan.