Super Novice Dreaming of converting to a Japanese style garden

I would like some grass to grow in this space but understand first the paving will need to be crushed up and lifted out.

I’m a little concerned about hitting any of the drainage pipes that might be underneath.

I also need to be mindful in design of not blocking light coming into the basement underneath.

It’s my own space and at the moment is just a few plants that were gifted and some attempts to grow chilli’s.

Current ideas are some grass with pathway rocks

some bamboo to cover the dividing wall to next door.

some small raised planters

ferns

eventually a bonsai! (saving that as a finishing touch)

small water feature with trickling water to cut through the sound of road

Japanese style lantern

a diy 5ft high by 2ft squared shelved miniature green house for chilli’s and salads

what do we think, is it going to be a lot of work? Yes.

Will it be worth it? Yes

Does anyone have experience with this kind of conversion. Many thanks in advance!