Most cost effective source for residential wire and conduit?

67Dart273 said
The only way that will solve anything (wire gauge vs load) would be to use a 240--120 transformer at the far end, and the cost of that + weatherproof box just negated the wire savings

I was thinking more of setting it up like a sub panel. But yes, a 2 KVA NEMA 3R transformer could be used but admittedly, it's about $200. https://www.amazon.com/dp/B007V6FHHW/?tag=fabo03-20