Hi there!
As far as working with lye...
I use 8 oz. of lye and about 18 oz. of water to make my soaps. Mixing that lye/water solution is the ONLY time I ever see any fumes of any sort, and the amount is similar to a small pot of water on the stove simmering-- not huge plumes, just a little wispy "steam" for about 30 seconds or so.
I put a big, commercial Rubbermaid pitcher in my kitchen sink, open the window, pour in the water. pour in the lye. that's it. The solution heats up on it's own, and cools. When you add in your oils, there are no visible fumes, although, you can leave the window open if you'd like, it wouldn't hurt.
I wear goggles and gloves in case I splash. But that's it. I've gotten drips of freshly added lye/oil on me-- they just itch! Working in the sink, I have the water right there to rinse anything off.
I'm not writing all of this to convince you to use lye- but more to let you know it's not as scary as I had thought when I made my first batch. I was a college chem student, and a teacher mentioned that if we understood acid/base reactions, we could do all sorts of things, including make soap. So I tried. And I've been addicted ever since.
I think M&P is a great way to start!
And, you've found the best soaping forum in the world!
Have fun!
Erin