Shallower depth dishwasher

Hello,

I need a dishwasher. Unfortunately, the only spot for it has a load of pipework at the back that it seems pretty much impossible to move. The men who came to quote today said confidently that I just need to buy a shallow dishwasher, 400 or 500.

I cannot find one! I'm starting to think that they don't exist. I'd be over the moon if anyone could tell me where to look.