Split a text flow into separate boxes

I have a galley of formatted text. It is copy for a catalogue, perhaps 10-12 items. Each item starts with a 9 point key number (1, 2, 3...) followed by a line of product name, a paragraph of description, and 1 or more lines of products codes, e.g.

2 Colour Television
This television does blah blah and blah.
1234 20inch £100
2345 24inch £200

I simply want each product in a separate text box. I've got as far as

set keynosref to object reference of every word where its size is "9 pt"

and somehow want to access the copy from the 9pt character through to the character before the next 9pt character, copy and paste it into a new box.

I need to use Quark copy and paste to preserve formatting. Or do I need to do the 'export with styles, import with styles' thing? It's so long since I've done anything like this and I have forgotten it all!

Any pointers appreciated!