You can definitely make a purchase any time you like, but do note that we do carry limited number of stocks for each items and they may be sold out in time to come and may not be re-stocked anymore. If you like an item, our advice is to secure the items first. We usually allow items to be stored in our warehouse for free up to 3 months (thereafter with a nominal fee), but alternative arrangements can also be discussed. Additional storage fee can be arranged at 5% of the total amount per month, unless otherwise agreed upon.