If you want some coach and wagon kits this is the site to get them from, (no connection with myself).
http://www.hamodels.co.uk/
Supplier of Plastic Coach & Wagon Kits from Parkside Dundas, Cambrian, Mailcoach, Cooper Craft & Ian Kirk in O, OO, 009 & N Gauges. Slaters OO Gauge Wagon Kits coming soon to H&A Models Website