My goal is to design the below part in Solidworks. I understand that this part requires extensive use of relations. For example, I can see several pairs of parallel lines. I foresee myself creating several parallel line relations. That's basically the extent of what I know right now. 

I also see some angle relations. For those, do I set up a construction line and then measure out the angle using the construction line as one of my references? What's a good way to start this part? Should the part only involve drawing 2 continuous lines? Or should I sketch out each loop, section by section? 

Any tips and pointers would be helpful. I tried searching YouTube for videos on relations but I didn't find any helpful videos.