I would wait a few months to give a more stable log of statistics to any potential buyers... the $280+/month income can't hurt in the meantime and you'd probably get offers reflecting the extra months of statistics. Good luck.
Another question you will get is how much work do you need to sustain the sales? If it's mostly hands free and the product is evergreen, then you can get 10-12x monthly earnings. But if you need to work 3 hours every day on it, then maybe you can get around 5-8x monthly earnings. Still, why don't you expand on your current authority and increase your earnings? Seems to me you could make much more like that. Cheers!