This is really something impossible for others to answer for you.

Even if you provided your map to look at we just don't know the actual terrain you might be dealing with.

Personally I lean toward making multiple bases around resources to limit travel. But any thinking on that comes down to what the map RNG presents itself to be. I have to make decisions based on the reality at the time and I don't always find good locations for things.

Typically for iron I want five or more crypts near a black forest copper node. But I have had maps where I just could not find that and had to grab stuff here and there and transport it.