Slitherine

Anyone know of a manufacturer who makes a nice 10mm Roman fort (or possibly a smallish 15mm one) that would serve as a nice fortified camp in FoG ?

there is a book with a paper fortified roman camp, however it is not in print and may be difficult to find. the title and publisher are
Make This Roman Fort: Usborne Cut-Out Models

'GROMATICVS' on ebay. 15 mm Roman villas/forts and hadrians wall stuff.