Salt Water Conversion recommendation plz

All, new to pool life.  Purchasing a home that has a roughly 11k gallon pool plus a “spill into pool” Spa attached and would like to convert it to salt water.  Have been doing a lot of research but still have some questions and need some guidance. So, here’s what I’m looking for.

  1. I would like to buy a system that has an app that i can control settings etc from my phone… 21st Century!! LOL

  2. I would like it to be mid range as for as price but am willing to pay depending on features.

  3. Understand that I would have to change salt cells every 3 to 5 years so something with affordable cells would be nice.

  4. I’m a DIYer so would like a system that I can install myself.  So, what are your thoughts?

Thanks in advance