Howdy, at my Jr College, the O Chem instructor was a high school teacher. He wasn't full time faculty (I forgot the name for these type of instructors 'on loan'). He talked like he knew what he was talking about...he followed the book precisely. When it came time to answer questions or develop ideas further, he couldn't. His tests were a bit boneheaded and included answers that didn't make sense at all.
He practiced chemistry at one point, but I don't think he was an organic chemist. His teaching skills could've been refined.
Point is, (in my experience), I would welcome an instructor who knew how to answer questions. To answer your question:
1) I'd say check where you want to go. My area as 10 community colleges so I'd say there *might* be a demand.
2) Luckily, O Chem isn't math heavy (as opposed to analytical or physical chem). The level I took, it was all theory and mechanism. The lab portion was microscale and as long as we got the final product (no matter how crude), that mattered (he didn't stress proper lab reports).
3) Well, he taught from the text book, his lecture notes were lifted right from the reading. I suppose as long as you could develop those ideas further than just the book, you should be ok. Maybe you can take his class (audited) and see what I mean....ha.
Good luck.