Well, you've had a lot of great responses here already. I also read the thread the other day about the person who's doctor suggested PG might be less of a problem to inhale than VG. That makes some sense to me from other things I've read.
IMO, I believe a lot of nicotine is absorbed by the mucous membranes in our mouth and nose. If you could be satisfied by vaping like smoking a cigar, so draw into your mouth, hold for a bit and exhale through both nose and mouth, I would do that. If this didn't work for you you could inhale occasionally and do the cigar thing the rest of the time. In any case, vaping is likely less of a risk for you than smoking, so I would do what it takes to stay smoke free.