As a Spain player myself, please just redo the Spanish Logistician and make it just give an arsenal and military wagon like France and Sweden’s Logistician.
This would remove the OP extra resource creates and give Spain a decent age2 play, and access to infantry breastplate would probably allow for more xbow pike compositions in age2 which is rare.
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Or, please make advanced arsenal card reduce price of arsenal or just send an arsenal wagon with it.