Just curious, did you have the boat surveyed when you bought her? If not, then I'm not too surprised you're finding all sorts of rude awakenings in terms of unexpected problems. That's why you have boats surveyed.
The boat was surveyed (worth every penny). However, because it was still out of the water, the survey didn't include engine.
So, I have two suggestions. First, fix and maintain your equipment so you have confidence in it's performance. Second, mentally prepare for problems because they will occur.
Thanks for the encouragement. I think this is just a matter of getting over the hump with various systems. Most of the things that are giving me grief, are things that I didn't have on my previous boat (a Catalina 22).