I agree with slotsaff, 1.5 million then was great for a co.uk. Even 420K now is a lot Its a buyers market these days…poker has peaked in the UK, the changing legal landscape now might help your cause with global players trying to get a foothold in countries where they can get a licence, UK looks like its following other EU counties like the route France took. If so you could be in with a shot with the mid 6 figures. But don’t be blinded, it looks like you should have sold on poker.co.uk a couple of years back. Did you test the waters with an auction a sedo?
As for the other names, I would be very suprised if you had any buyer at over 5K for any of them. If you do send them my way when you have taken their cash.