FWIW I personally don't buy any products or services for my business, that are backed by a one man company. The risk that you may get sick or bored or bought out or hit by a bus, etc. is too high.
If you're not a sales ninja, you'll have to finish building the product, before you get any sales. Contact your competitor competitors, see if they'll be interested in cooperating.
If you're not a sales ninja, you'll have to finish building the product, before you get any sales. Contact your competitor competitors, see if they'll be interested in cooperating.