Since most people give up on Do-It-At-Home schemes, you should get something inexpensive to try it out (like a one touch) and if you still want to pursue the DIY course, then get a real professional machine and work your way up in the skill factor.
In any case, you will want to get electrolysis books and read up on this BEFORE you start poking at your skin. If you can only buy one book, make it Michael Bono’s “The Blend Method: Real World Electrology” which is simply called The Blend when being discussed. Although it is called the blend method, Michael has put together a book that dispite his intentions is the best teaching tool for all three methods, and therefore one can use it to begin with galvanic, move up to blend, and when one is ready, progress to thermolysis with the understanding of the contents of this book.
Of course, if one can find a really good professional, one would do better to just pay for the work. A good pro machine will cost $500 to $2,000 US dollars and doing good work fast doesn’t come quickly.