Would your area by covered by Geraint Davies MP? Apparently he is going to be holding a conference about electrification at Swansea University on Friday, May 11, see
here. A bit 11th hour though, IEP might be sealed & signed, though not delivered, by then.
Is his conference open to the public? If so I'd like to have a chance to try to air my idea of using push-pull 23m coaches (perhaps mark3s, perhaps mark4s) to maintain the services west of Swansea without needing to clear routes west of Cardiff for 26m coaches to an audience who might listen (DaFT don't seem to want to). I also have an e-mail from somebody at DaFT dated 14/4/2011 which said the route to Penzance would be cleared for IEP too, that wouldn't come cheap. I wonder if they have dropped that though since IEP won't be going to Penzance in current plans (but, madly, the GW franchise consultation suggests they will run 1 trip a day to Paignton with an IEP, all that route clearance for 1tpd).