Alternative for field collapsing

[Rakhi Khatwani]

Hi,
      I have an index with the following fields:
      id  (unique)
      title
      description
      price.

Suppose i want to find unique documents and count of all documents with the
same title, sorted on price.
How do i go about it.
Knowing that field collapsing is not stable with 1.4.
if i go about using facet's on id, it sorts either on id or on the count,
but not on the price,

Any Suggestions??
Regards,
Raakhi