Oh blimey, decisions, decisions! I bought an 'as new' Mainline B1 for a mere 35 squiddlies about three years ago and I've been thinking of plonking it onto a DB chassis as I believe the £70 kit also has all the bits to improve the body too. Hmmm, is it worth splasing out another £70 to do it with Hornby's B1 instead?…