All you need for frequencies of 1.8 to about 20 MHZ is a BNC connector and some 3/8 inch plastic tubing. Wind about 8 turns of #14 spaced one wire diameter and cover it with shrink tubing.
I have the MFJ kit and have used it but the results are marginal in most cases. I prefer to use My Millen GDO which is far far more sensitive.
I'm sorry you don't have the experience or understanding to realize that others possess a skill set that you seem to dismiss as fantastical.