After waterproofing, I will reinforce the item before shipping. Price is not negotiable. Regarding shipping: One item sent via regular mail has not arrived. Items shipped on the same day did arrive, but since regular mail has no insurance, I will now ship everything via Yu-packet Post Mini or a method with insurance. If you have a preferred shipping method, please message me in advance and I will change it. ⚠️Please note that in the event of loss with regular mail, I can only assist with a search request. Regarding combined purchases: ⚠️If you wish to purchase multiple items, please apply without setting a price. If a price is set, I will not be able to combine the purchases. Also, please understand that items purchased separately cannot be shipped together.