Would love to see the South Devon main line from Exeter to Plymouth done. Be great if it included the Riviera line from Exmouth to Paignton as well. There would be good operational interest with the Exmouth-Paignton services having to swop ends at Exeter St David's. A good range of loco types being used on local branch services, wider regional and cross country intercity services as well. Freight services also feature along the route with China clay workings, timber and ballast trains. And of course the fantastic scenery along the famous South Devon coastline, rolling hills and Moors.