John, it's great to hear that you are still making models.
You can find a picture of a completed model of Rangitiki on the Sammelhafen website which shows that there are kingposts inside the foremost davits of the first lifeboat, both sides.
If you search for all the ships in the Nelson back catalogue in turn you will see where there is no competion to the Nelson model. It is those that you are most likely to find customers for today.
Good Luck!