This will change as Evolanca develops the map I'm sure but here is what I could dig out from the mod folder. Place these codes in your game.ini file just before the level progression section at the bottom of the config. These are configured to yield 500lb stacks at current material weight values.

ConfigOverrideItemMaxQuantity=(ItemClassString="TIA_PrimalItemConsumable_Strawberry_C",Quantity=(MaxItemQuantity=5000,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="PI_Resource_Wood_C_Birchwood_C",Quantity=(MaxItemQuantity=2500,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="PI_Resource_Wood_C_Firwood_C",Quantity=(MaxItemQuantity=2500,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="PI_Resource_Wood_C_Roxburghii_C",Quantity=(MaxItemQuantity=2500,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="TIA_PrimalItemConsumable_RedSeaweed_C",Quantity=(MaxItemQuantity=5000,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="PrimalItemConsumable_Protection_Anemonium_C",Quantity=(MaxItemQuantity=5000,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="TIA_PrimalItemConsumable_Champignion_C",Quantity=(MaxItemQuantity=5000,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="PrimalItemConsumable_Nerotoxin_C",Quantity=(MaxItemQuantity=5000,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="PI_Resource_Wood_C_Bamboo_C",Quantity=(MaxItemQuantity=5000,bIgnoreMultiplier=True))
ConfigOverrideItemMaxQuantity=(ItemClassString="PrimalItemConsumable_BambooLeaves_C",Quantity=(MaxItemQuantity=500,bIgnoreMultiplier=True))