Addressing a lot of issues here:
I would not recommend diy dreadlocks. They can take years to form and in the meantime you look awful. (The linked to dreadhead as well as other products do not really give you dreads--real dreads take time--and the photos on their sites are only of the lucky people who had it turn out well). Some people put wax or other things in their dreads but it is not necessary. My locks have nothing in them but hair

. I've heard a few horror stories about non-blacks getting locks in Germany, apparently some of the hairdressers don't know how to deal with differently textured hair.
I got my locks done in Brazil and paid about 30 euros for them. Here in Germany I think they can cost upwards of 150.
Lalalalala, I love my locks. My hair is quite healthy and I only have to wash it about once a week.
Here are some recent photos of my new color.
There are lots of misconceptions about locks so if you have any questions you can direct them at me, at least until tomorrow when I'm off to Italy.