I got into live steam a fewyears back.
I have an lgb frank s, and a roundhouse sandy river.
Get something new, and, of quality.
I love both, but the roundhouse is a joy.
It runs like a bmw or mercedes, smoothly,, strongly and reliably.
I was manual, but prefer RC.
Live steam is different than electric, for me, in that it takes prep, and isnt as spontaneous.
This is the joy, and, burden.
Its easy , provided....everything is in working order. I know nothing, other than how to light, lube, tighten screws, and, tweak a jet.
I am not a devotee, but do enjoy it a lot.
Its a very wonderful aspect of the hobby.
Like many things, price often reflects quality. Live steam is a lot more costly than electrics.
Dont go cheap.
I too would strongly recommend roundhouse. Quality and service. Ergonomic engineering, too, ie easy to fuel, water and control with hands.
Like not having an electric engine that balks, jumps, stalls, etc., smooth operation makes all the difference.
Speed control, especially with grades, is critical.