36" is a very tight minimum & not often used any more, 44-48" is better for walkways & multi cook kitchens.

I would clad it in horizontal wide timber flooring planks. Myself I'd go a grey, weathered timber like an oak, the engineered flooring can be bout in packs, so a single pack would create a feature inexpenssively. It will provide the oppotunity to introduce timber details in furnishings or kitchen accessories. Natural timber softens modern interiors, relaxes and adds character to traditional looks like provincial or hamptons styles. The wide plank will enhance the flow as a walk through, but still provide an intersting visual texture to the adjoining lounge area.

Mine has a sink, dishwasher, and pull out wastebins. All good. What I should have done was insist on more cutlery drawers and some pot drawers instead of under bench cupboards. Not a fan of underbench microwaves so didnt ask for one.

2500 x 900 or the 1000. Aim for 1100 - 1200 between benches.