ArtMetal

You can't go wrong having an oxy-acetylene setup, if only to heat things and bend them. I also use mine to braze.

I don't use my OA setup often, because I have stick, TIG, and MIG in my shop, and generally prefer to weld TIG.

I would pass on the tiny bottles, unless you need the portability. Small bottles will cost you more in refills, so cost more in the long run.

Your local welding shop may have sales on OA setups. I started with the 40cu ft size bottles (bigger than what you were looking at) and have upgraded to bottles around 80 cuft.

Have fun,
Richard