Bill DeBrooke posted:How much is scrap brass going for now? I have done pretty much the same things you have and would not begin to attempt this as a first project. However, it come be fun.
Yes - start with something more modest - like a Williams brass upgrade (suggested above). If you are asking what skills you need for a 2RO to 3RO conversion, you don't have them (yet). Most of us don't. But - it has been done.
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One little thing (didn't see it above, but maybe I missed it) relative to a steamer conversion: I have seen a few guys wrestle with putting roller pickups on the loco frame. Don't. Put 3RO trucks with pickups on the tender. Most likely you will have the electronics in the tender anyway, and also will be using a tether to the motor in the boiler. So - feed the engine/motor from the tender. This is actually the only fairly easy major part of a 2RO/3RO conversion.
