I do not recommend preordering third party/custom items. Oftentimes, these items get delayed repeatedly and the actual release date is uncertain. Prolonged preorders can lead to things like automatic cancellation, having to manually extend delivery dates, and confusing automatically generated false logistics. Also, if your preorder window goes beyond 6 months without receiving an item, PayPal can no longer help you dispute a charge to get your money back, putting you at the mercy of whatever seller or website you preordered from. If you use another payment service or bank, I recommend researching what their policies are regarding what timeframe you have to dispute charges. See PayPal's guidelines here.