Well, thats a step forward.
All you have to do is tell the welding store what you want to do, ie up to what size metal you want to heat to brazing/ soldering temp and they will tell you.
Shouldnt take more than 10 mins of your joint time.
Better still take along samples of the metal you want to heat/ join.
I started out some 65 yrs ago by ASKING! a plumber what I needed to weld up a steel tube space frame for a car special I was building aged 18. I got 1 oxy/acet torch, 2 hoses, 2 regulators and a cylinder of oxygen and one of acetylene. He showed me how to put it together and light it up. then off I went. You have to ask the right questions and talk to the right people.
Still have pics of the car.
Also you have to have a dream of what you want to achieve.
THEN find the way to do it.
If its been done before it can be done again.
Dont ever let lack of kit spoil your dreams.We now have here all that sort of kit to do the really difficult joining, in aluminium, s/steel and titanium using 3phase inverter aero grade argon /helium specialist kit.
Here endeth the 1st lesson!.
await your progress.