Congrats on the sale. Love the painting, and your strong style, you immediately recognize it.
I wish you succes on quitting tobacco, I did too, but quite some time ago.
For me cold turkey was best, no patches, chewing gum etc. My idea was that when you are stopping, motivation strongest in the beginning, best to take on the withdawel symptoms straight away and get that part over with (not the whole battle by far btw...). By taking nicotine in an alternative form, you drag out that process.
But it might be the right thing for you, how to quit is not a "one size fits all" kinda thing.
(I am still a raging caffeine addict though....)