IMHO, they owe it to those of us with the old one to make the new interiors available as a spare part. Customer care and all that. They admit in the Engine Shed blog that the old one is not up to scratch, so come on Hornby, keep your customers happy! Replacing whole original models with the new ones is not just a case of liveries, this new tool is the later rebuild units with extra seating where the guards van used to be, so just repainting it into earlier colour schemes won't work.