Railing or wires?
Both have advantages and issues. SS railing looks good until a guest stands on it to dive overboard
...and bends it or it is damaged against a pier (or if in England
, a drunken peer?). Repairs
can be very time consuming and expensive.
Tubing pushpits and pull pits etc sound sensible as the areas are often triangulated to allow greater strength at areas of “action”. E.g. anchor
or headsail work. At the stern, the SS tubing is often used as part of seating, davits
shade or solar
panel mounting etc.
However, I believe you should be paying much more attention to the mounting and sealing of the stanchion base. This is where all the leverage ultimately ends up and a miniscule leak can create really serious problems such as stress cracking or water
ingress. I have seen a large visitor grab a stanchion and haul himself up onto a deck
from a jetty. The stanchion bent, then pulled out of the deck. Charming.
Safety facilities to retrieve overboarders or allow entry from a jetty need to be worked out.
On my own tub, I use SS wire where possible. The wire is actually inside small diameter black poly garden sprinkler reticulation tubing. It is (unlike the marine
white stuff) UV proof. It softens the hand feel on the wire. I can easily remove (pelican clips) sections when needed such as coming into a berth. Wires also have more give when leaned on or when headsail sheets
bang against them. I have no stanchions at all because my rig has A shaped supports that raise the cap shrouds to the same level as a pin through the mast
that in turn allows me to singlehandedly raise or lower my two masts (52 ft and 38 ft) The axis pin heights are about 90 cm above the deck.
The wires go from the FWD SS tubed pullpit to the main A frames then another section to the mizzen A frames and a final section to the aft SS tubed pushpit. I can also easily change the height (currently about 80 cm) above the deck and the number of these covered wires. I suggest you spend time looking at other boats. Lifelines
that work are essential.
If rebuilding, I would give serious thought to SS bases and fibreglass or carbon fibre “flexible” stanchions and still use SS wires. Maybe even Dynex? Softer to handle. (Am checking the bank account.)