This is a great business that has been growing well year over year. They have continual supply in place and a seasoned online store.
Revenue is around 700k, which is great, but here's the straight up deal, the owner is not actively involved in the business and has 2 employees running it at a labor expense of around 90k and a warehouse with rent and expenses north of 45k. The best thing that could happen is to have buyers who are partners, a couple, married, etc with either a Morton building at their house, or an existing business with a warehouse with space to bring this inventory in house.
The inventory is valued at over 300k, but the seller is willing to take a loss because he can't be here to manage it effectively as he would prefer.
For the right buyer and situation, this should be making well over 100k. You couldn't even buy the inventory to start a company at this price much less to already have the systems, suppliers, and seasoned store with followers in place.
His loss is your gain and he knows that. Might he consider some owner financing or inventory consignment? Depends on the offer, situation, and buyer qualifications. Seller might be open to creativity.