Using one of these in a Daimler of mine. Will fit one to the 144 to replace the Gross pump.
http://www.fuelflow.co.nz/FF_cms_03/eshop?page=shop.product_details&flypage=flypage.tpl&product_id=73&category_id=29
best to message the company thru the web site. They then ring and you get a good price. Takes 4 5 days to arrive.