First you find the item quantity for your logs for example. Then you do a breakpoint to find out which WRITES to it and start crafting. This brings you to the game function changing the quantity. From there you go upwards until you find the check that looks for your inventory item quantity. One approach could be you let this check always pass and set the craft cost to 0 (the amount your item quantity gets subtracted by).
Brilliant, that has helped TY for taking the time