Few manufactures in any business…
…post the specs for old products on their current sites. A quick search of the web should turn up numerous places where the Avocet specs can be found. It’s not as if they’re not available if someone wants them.
Some manufactures…
…use to list there discontinued models on their web page.
Probably as more of a courtesy than a good business decision.
for those looking for sea kayak specs…
Here is a decent website and the list is sortable.
http://www.kayakacrossthewater.co.uk/sea-kayak-size-volume-comparison-chart/