I cannot say that I'm a novice in the sailing, because all of my experience is a couple of classes of wind surfing

However, sailing is always impressed me and there is a time when I can try my dream. Actually, I was looking for a boat for fishing for this season until I found a few yacht and I thought "why not?" Also, I want to go for a long trip one day, so such experience could be useful.
My questions are:
1. If the investigator is a good boat for a novice
2. If the investigator is a good boat for fishing
3. Comparing with common fishing boats with the similar size, what's safer in a bad weather the investigator or a boat?
4. Is it possible to do a long run (2-4km) on a small engine (2 hp)?
5. What's minimum wind speed to use sales for the yacht?
6. What's maximum speed of the yacht when sailing?
Thank you in advance!