Using Jonathan’s last plan for narrowing the top bedroom for the shower room, cloakroom and coats cupboard. Rather than extend in what is the kitchen, lose the side door on the left. have base units on the left with the opposite wall having full height units including the stacked wm/td. You could have an island 1500/1600mm long widthways with 2 stools.

ive tried doing it on AI but have lost the will to live as it keeps doing its own thing

Personally I’d keep the kitchen by the garden particularly if you want to go open plan