Installing this weekend: 5100s front (@1.75) & back & 1.5" Icon aal advice please!!!!

Hey everyone...I have used the search function and read a lot of the other threads on 5100s and aal install...had a few questions particular to my situation if you don't mind helping out with any install advice or link me to a thread I may have missed that discusses my situation...

I am intalling the 5100s on all 4 corners and the 1.5" Icon progressive aal in the back

I am going to be helping a buddy of mine who has replaced a suspension on a ford truck before, so he has some knowledge as well but I want to know everything going in just in case he is not doing correctly or I see something amiss

the questions I have:

1. in replacing the shocks, what is involved? do we need a spring compressor? or is replacing the shock a fairly simple process?

2. will I need to get an alignment done if I set the front at 1.75"?

3. anything about the ICON aal that would pose a different install than any other aal?

thanks in advance for your answers