Use the black pages (for the uninitiated, it's here: http://www.auran.com/TRS2004/DLS.php), use the keyword "pannier" and search Descriptions. There's a couple there. UKBL had some nice British engines but their site is no longer online. In fact the aformentioned search will turn up an enginespec for a Duck look-alike, you can grab that and look for its dependents (the opposite of dependencies).