Here's another photo, this time "bucati." It appears to be closer to the Greek pastitcio pasta in that it has a larger central hole (again, the Greek stuff's very much like a drinking straw). However, I can't really confirm that you want to look for "bucati" rather than "bucatini" -- I haven't found a really solid confirmation on the Internet that there is a difference, let alone that the difference is the size of the hole ...
Basically, again, just look for something similar, with as large a hole as you can find. If you find something similar that's mostly solid, however, I'd think it's actually less suitable overall than just switching to penne or some such -- solid pasta would make this dish unpleasant, I'd think.
Let us know, huh?!