Answer to your first question is no, my first question is why bother
reinventing wheel kind of thing. Now the item you didn’t mention, is
it a air/fuel or air oxy/fuel. As there are torches that burn most
commonly available type of fuel gas. Including the water torches for
jewelry scale sized pieces to industrial sized.
Secondly are you aware that using anything copper above a 67% with
acetylene can cause a very nasty reaction that generates very nasty
results. It combines and produces Copper Acetylide, one of the
reasons that they went to using black iron piping after a number of
commercial acetylene generating plants accidents in the early days.
It is a reddish powder that forms inside the copper piping, and it
is very unstable even more so than acetylene. Do you know the type
of material that is used in the seals,o rings, and hoses it is
different than other fuel gases.
I could go on for a while, Burners(fixed torches are built all the
time) for forge, furnance,or kiln. Again proper nozzle size and
other fuel specific considerations must be adhere to.
With the number of low cost, torches for almost any fuel that are
out there, either new or used. There seems to my mind a better use
of time, materials and money. Other than the fact you want to!
As an accidental collector of torches,over the years. I can say that
from the first one to the latest,greatest one. Other then the
size,shape and handle style they all do the same basic thing.