Equipment Options

I have a really retarded question. As I stated in an earlier post I am new to goetia but not to ceremonial magick. I was wondering how much of the equipment from the Goetia is really essential to get results from this kind of evocation.

I have a circle with the holy names on it. Its not the same form and design as the one from the lesser keys however(its my own design).

I am also making a triangle of art with a skrying mirror on it. So the triangle won't be the floor variety as in the Book.

As for the bass box, sword, and everything else, I don't have them. All I have is standard Golden Dawn equipment(minus the sword).

So do you think all the trappings are essential? Would it not be successful without following it to the "T"?

Thanks, I know it sounds retarded but I didn't know if the same rules of modern magick(Golden Dawn and Thelemic systems and AS systems) also applied to old gremoiric systems.

But I will just read read read and absorb as much as possible and then test, record the results and move on.