My god Baa, you have so much growing space I feel quite overwhelmed just looking at it. :)) And Rosa, that is so exciting.
I love how mature and interesting your garden is abs (especially from the viewpoint of staring at a green block :)) )
I'm starting to think properly about this now. I might not involve the designer: I spent so long figuring out my needs/wishes so I could have a good constructive session with him that I think I've worked it out myself (I haven't even got his contact details yet so I'm not letting anyone down). I think I can manage without any more hard landscaping and can therefore do most, if not all, of it myself, which will free up money to buy a Kamado.

But I am nervous about overlooking something in my plan and messing it up. I'm going to take it slowly and step by step: I've marked out my main big border with a hosepipe (and keep going out and slightly adjusting it) and I have ordered a sharp bladed spade for digging the turf off that part, so that's the next job. The back of that border is in shade, but there is a section of garden behind the garage that the developers planted up, assuming it would be in shade, and it isn't - I will move some of those plants over to the back of this new border. And that tucked away square where the shade plants were will become my vegetable garden, with four square raised beds (or two, I haven't measured), although I won't plant anything ambitious this year.
I've sketched in a separate herb/salad garden (including pretty things/edible flowers) by the patio but keep switching back and forth between digging a nice curved border or using raised beds. Or both. And I have sketched out a decent sized wildlife pond but won't be looking to dig that for a good while yet.
And I'm picking out native hedging plus some honeysuckle for the back of the back border, to cover up the ugly standard-new-build fence with concrete base, and moving that border forward so there is still plenty of room for more planting in front of the hedging. The birds WILL come to me, eventually. :))
There's so much to think about that I find it a bit daunting, so just trying to focus on one job (digging the main new border) at a time. It's too early for putting most new plants in anyway, so I can just let those ideas gently infuse away at the back of my mind for now.