🙄 (Garage or workshop will do!)
Agree on the positioning of the workbench – across the short wall.
My workbench is similar to footflaps (also built myself). It has boxes for storage in the lower shelf (currently brittle plastic – am going to build some ply ones) plus a couple of tool boxes. On top of the bench I have a vice and also a Park bike clamp (worked better in my old house than current garage).
I have open shelves above the workbench, but TBH these will also be replaced in due course – I’ll build some ply cupboards.
Also think about how you store your bikes – Stoner has a pic somewhere of his shed (one of them) where he stored his bikes upright and angled at 45 degrees to the wall to lessen how much they encroach on the internal space.
Have a think about flooring as well and make sure that the walls are nice and bright.
Oh, and lots of electric lighting and plug sockets.