I would prefer them in a compressed Railking. Think of all the schemes they could do!
Island modelworks did it in 2r, OEM's can make them, just to lazy.
I think a compressed Railking version is definitely the way to go if someone made them. I would pass cause I'm into scale passenger trains but railking 60 footers is the version that would sell; and yes there's a LOT of schemes that could be done :-)
I saw the IMW 2R model. For that price I'll try to make my own out of a sturdier material and just pick up some Mth streamlined passenger trucks. I've got LED strips, plenty of figures but not enough time to devote to building a fleet of passenger cars lol.