I have found replacement pawl springs for Barient/Barlow winches at West Marine. The Lewmar kits have pawls that may match up with the Barient/Barlows... but I've not tried them....Be cautious of not losing the small springs on the pawls since replacements will have to ordered from the AUSTRALIAN YACHT WINCH (SALES) PTY. LTD. in the land of down-under. The following link is a well written article on how to service Barient winches; http://www.arco-winches.com/products/service and a possible source for parts.
Have fun
Bob