Rather than the 'classic' aluminum nesting pot set, I would consider something else instead. As far as I can tell, this kind of cookset is no longer available in this form, and that's probably not a bad thing. Nothing quite the same on scoutstuff.org or any other site I tried. Textsport has a very inexpensive aluminum set that has some of these pieces, but appears to be of very 'cheap' quality so I am not going to link to it. Stansport has a stainless steel set without the water pot, but the handle setup gets mixed reviews.
If buying new, I would consider the Magma stainless steel set instead (linked). While this seems pretty pricey, this is a truly high quality set that is going to hold up over time. There's also a set from Magma with a few less pieces for a bit less, but the larger set seems the better choice. Note that I haven't tested this set to make sure it actually fits in the box (it may be tight), but I might have an opportunity to check this soon. If the Magma set doesn't fit, the Stansport set is likely to fit. They advertise the largest diameter pan as being ten-inches --- that is likely to be fine.