2018 shocks/coils on my 2011?

Lol.. didn't look into it, just asked out the blue.

 

Ok. How hard will it be to swap out my old suspension for these new shocks and coils I got from a 2019 TRD OR?

Coils are installed and everything already. Would it be pretty easy to just take off the old and swap in the new? I'm planning on redoing my brakes this weekend. Maybe while I'm working on it and the tires are off I might as well throw the shocks on, too.

Only concern is taking the taco lean spacer off my old shocks and adding it to the new ones. Does it go on the top, or do I need a shop with a machine to compress the coil?