I get a bit confused on the language regarding your resource priority - could you please clarify it?
And what's your tech order for this start?
When i got it correctly (i am from europe so no access to BNW yet :S) you can still trade for gpt with the AI normally but they changed the rates.
You get for 1 strategic ressource 1gpt and for 1 lux 5-6gpt.
Still i dont see why you should prioritizy strategic resources over Lux improvements, because you would need a 6 Iron field to get the same gpt from the AI in comparison to the lux trade...but we will see