Thanks for replies!
I haven't mentioned that I'm in a building, and it's not only that I'm not allowed to bring high pressure cylinders and tanks, but also I'm concerned about safety for people around me. So, I have two options only: disposable oxy/pro(mapp) or propane and concentrator. Either way it is going to cost me a lot. If I had a basement I wouldn't think this much.
Bob, I've never used acetylene, I just read about it and heard from other people who used it. Anyway I can't use it.
Yes, it is going to be used for silver, that's why I need the torch which can produce enough heat and that is why I'm concered about little torch.
Loopy, I think I read at Gesswein that Meco Midget is not produced anymore. They sell tips only, but I saw it is still available at Otto Frei.
Still don't know what to do. I read all reviews several times. I wish somene can tell me: buy this torch set, it is safe, good quality and it can finish the job. I wouldn't be at square one over and over.
Thank you again