I agree with most of the posters here, "dont give up the ship"!
If this is the boat for you, the repairs might not be so bad. I just replaced the transmission (with used ~$500) all 4 motor mounts (~500 new) and damper plate (~$160 new). All that with the engine in the boat. if you have decent access, and depending on the engine, this is a 2 day job (for an amateur like me).
My engine is a Yanmar 2QM20. Here are pictures
So if the boat is otherwise the right boat for you go for it. And be glad that this happened now and not on your maiden sail with the missus!