I still think if you can't meet your own deadlines you should at least communicate with your customers. People buy with expectations of getting things within a certain amount of time.
But this is for enthusiasts - it's a different ball game, to be fair. Roman is a gent, and rest assured, you will get an excellent product at a really good price. What you can walk into a store and buy, or order online from general businesses will likely be dearer and not half as good.