None of these families really look like the das... I may be wrong though. I'm actually using a rosewill keyboard with das caps. So maybe that makes them look different? If if you ask me, the DCS or KT look most like what the das uses. Also, I'm mostly paying attention to the number row, disregarding the rest of the rows.
I just saw that WASD also make orders for single keys, but unfortunately the shipping is still really expensive for just 2 caps.