I have a few sets my dad purchased in the 1980s in the US, the Flying Scot, The Orient Express and The Battle of Britain sets, all look to have similar passenger cars and loco (a 4-6-0) and I was hoping to purchase a DCC locomotive that would work well with these coaches. So my question is, are these trains actually HO like it says on the box, or are they OO that were just marketed as HO in the US? I've scoured the internet and I'm leaning toward them actually being OO but I figured I'd ask the experts!