Hey Jessica, I agree with your weighing whether an adam's apple or a scar is worse.
Fortunately, the scars are very minimal.
You'll have to ask a surgeon where the incision will be.
For older women, the skin is usually loose enough that the incision will be very high up.
That is, about where your thumb would press if you were holding your chin in a thoughtful mood.
A tracheal shave is usually done in combination with other FFS or SRS.
I've seen prices from $1500 to $3000 for an optional add-on.