Just looked them up, nice kits: http://dpcmodels.homestead.com/index.html

I'd stay away from anything below 24" wingspan for a kit. Under that size, weight becomes very critical and you balance structural integrity against all-up flying weight. The micro radio components become costly as well.

For all-out WWI or vintage, try these: http://www.proctor-enterprises.com/ Museum-quality kits, but large and spendy.