Go through the first two threads. Do not do anything until you have a good idea about what you are trying to do. Once you have definite questions (you will, you will ), come back and ask.
Keep in mind that these are guides, not cookbooks. YMMV. Your Mileage May Vary. Because of all the variables, you may not do as well as someone else with a similar system. Or you might do better.
Overclocking since 1978 - Z80 (TRS-80) from 1.77 MHz to 2.01 MHz
Well then I guess reading and comprehension are not your strong points.
Since you can afford SkullTrail but can't learn about overclocking and how no two systems are the same or will have the same results even with identical parts and how overclocking must be done gradually and tested over and over again to assure stability and that there is no one magic formula.......... my advice?