"Brass or wood they will look good."
Wood or brass they'll be first class!😁
Go for it Ron👍
If the rudder control rods get in the way; instead of taking the verticals right down to the hull what you could do is;
fit a large strong brass or alu plate (ca 1/8") under the deck section,
make the brass verticals, from rod not tube, with a 3 or 4mm threaded spigot on the end.
Then you can put nyloc nuts with large washer (PS belay washers, fit a single washer-plate connecting the verticals) under the deck to secure it.
Alternatively; drill and thread the vertical for a 3 or 4mm bolt. Preferably 4mm.
Personally I would favour the nyloc nut, but I guess a bolt and permanent Loctite would do the job as well.
But I guess the drill and thread would be easier to do if you don't have at least a simple mini-lathe.
Result, either way: the towing strain is dissipated along the deck.
You just have to make sure that that deck section is well and truly secured!!😉
Just a couple of thunks😉
Cheers, Doug 😎