Re: Query for rolling stock suppliers ...
Peco track is fine, but MicroEngineering make Code 55 flextrack, which IMHO looks better. A bit of digging will find Code 55 turnouts from other people that need a little work to lay but also work well with care.
No other RTR than Blackstone other than some Con-Cor geese and Microtrains cars, but they're OOP these days.
SP locos are available in brass, and some later ones (Westside Models mainly) are quite decent. PFM ones less so. SP rolling stock kits are available.
Google is, as ever, your friend here.
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