I have been comparing Rod Langton's 1:1200 metal ships, here represented by the 36-gun Apollo Class frigate HM Euryalus (1803) and the 1:1000 plastic ships by Ares, shown here by the 32-gun Concorde Class frigate, Hermoine (1779). I think they can be used together or as substitutes.
They will of course need common bases. I intend to make a Sails of Glory base and card for HMS Euryalus.