For creating items you need Effective skill levels. Also keep in mind that later you will get your home and will be able to get workbenches, they will increase you crafting skills. Also you can use drug to get +2 intelligence and eat underpie to get another +3 all skills
If you want to craft a top notch shield emitter, you will need about 160 effective electronics skill level. This will be a dual module shield emmiter, if you are ok with the single one it will be lower.
For tailoring, if you want to craft a kickass infused leather armor, you should aim to 124-128 effective tailoring skill. It can be a little lower or higher, because of different optional parts.
Also 160 level components are super rare, and I personaly think that 150+ quality components are enought to create really stong gear