This has all been explained many places in this forum. Yes it is easy to do and it costs about $500 to replace mirrors one for one with no other changes.
See
https://5thgenrams.com/community/th...th-power-folding-10-cyber-monday.4103/page-18. On page 18 is where the most recent discussion happens that may interest you. The back pages are useful but have a lot of back and forth that won't apply.
I basically just swapped out mirrors and kept my blind spot monitoring and puddle lights that my tow mirrors had. I didn't change the modules to enable power folding or change the door panel and didn't do any programming. Just wanted to see better. Didn't care about power fold.
Step 1: Identify the mirrors you want
Step 2: Buy them
Step 3: Swap (took me less than an hour)
If you want the full deal (power folding), you can go the easiest route, which is to order the kit from infotainment for full functionality and just buy everything from one place. Harder route is to buy it all separately yourself (also discussed in that thread) and just get the programming ODBGenie from Infotainment to enable the power folding.
Let me know if you have specific questions.