yeah dude i feel like you are getting overwhelmed with information. i hope you are listening to the advice in this thread which has been excellent.
yes letro is too harsh, you want to control estrogen on cycle, not kill it.. you need estrogen, too low is worse than too high believe it or not.
yes you need to run hcg to kickstart pct
yes you should run 1 compound the first time, your results will be the exact same 1 compound vs. 2 trust me. you won't know the difference
yes ANY amount of AAS will suppress your bodies natural hormones. this is steroids 101 and the fact you don't understand this tells me you need to learn more about what hormones are and how the body reacts.
yes you need to run bloodwork before starting to set a baseline. see my signature for how to do it.
yes i feel like you have a solid base to juice but you should spend many hours still learning about this stuff, read the stickies, read the threads on here. do it right so you can maximize your results