I don't know of anyone actually doing a kit it's just a case of measuring and replacing. Here's a Procat screw list:
http://www.rc10talk.com/viewtopic.php?f=82&t=21782
I would of though the Bosscat wouldn't be far off and you can use either eBay or
http://www.modelfixings.co.uk/index2.htm are good too.