Hello, I want to get my dad a metal detector for his birthday. It traces back to his 11th birthday when he got his first big present and his dad ruined it by using too high of a voltage of the soldering gun (I think my wording is correct) because he wanted the process to go faster. Long story short it was ruined my father never got one. I want to buy one for him. However, I know nothing about them, I want one that you can use the soldering gun it is really do it yourself but comes in a kit all together. Does that still exist? If so which one do I buy. Thank you!!