I am shortly to get into MRs BV's ex njgleeds ex Pillock ex everyone else on the Forum Saab 9-3 droppytoppy, so that Mrs BV can drive me to Didcot Parkway railway station. Yes, it's the Great Western Railway for me.
Little did Isambard Kingdom Brunel know when he built the thing that it would be used by people with questionable taste and judgment to go and collect appalling products of what passes for engineering, over a hundred years on. If he had known, I guess that he'd have jacked it all in and gone off to play snooker or invent Symbolist poetry, or something.
All that I can say further at this time is that, if the two railway lines soon to be in question were roads, they would be called the M4 and the M5. It may also be worth bearing in mind a version of The Rule of Two. Not just Sith, but also other evil things that want to kill you come in pairs.