Cutting torch restoration

I bought a total of 5 cutting torches & 1 set of hoses, the Victor cutting torch is the newest one & the others are 40 years old plus, most people don't use their torches that much I like them just because of their convivence. I bought all these cutting torches out of pawn shops, for less than 50 bucks, I am having problems finding cutting tips for the big one, the company that manufactured it went out of business in the med 1960s, but I have not looked hard on the internet, locally not available. I know some of you are very skilled in use of cutting torch, I am not, I have taught myself I am still learning, but I believe it is a great art.