Hmmm...depends on how you define "worth it", I suppose. I'm sure each region is different, but around these parts there are engines to be had, but usually on the expensive side. I've found it a better value to go with a new one from say Beta or similar. However, as an aside, have you given any thought to maybe securing a "donor boat". For whatever strange reason, I've found it to be much less expensive to buy an entire boat that needs say spars, or all the sails are bad, or the deck core is rotted, but still has a working inboard diesel. Of course, there's the whole, getting rid of the carcass to deal with, but it's an idea at the very least. Good luck and I hope you find what you're looking for.