Good to see you and your dad are on board Lance. I will leave the Bay of Fires winery query to answer by Mark, suffice to say I think some wineries are on the itinerary for the 2nd day of the tour, ie. up the Tamar valley, of which there are many to choose from and plenty of excellent ones.
Down south, well I think we should be also able to cater for such interests. The Derwent Estate vineyard is on the route so a small detour to that and/or possible Lubiano wines could be possible. We also are looking at the many vineyards say around the Richmond/coal river valley area, and also of course Morilla Estate on the Derwent river which is attached to the new MONA art gallery. That one is spectacular.