Trade & FA 2024-25:

[KillerLeft]

I think there is a legit chance Kyrie opts out and signs something like 100/3. 

1.) He´s unlikely to get more in FA. 
2.) He opts in, he´s probably looking at Klay/DeRozan type money in 2026, which then equals out to less than 100 over three years anyway.

Therefore I think the Mavs look at Kyrie as one salary cap massaging vehicle.

I agree, but it's still going to be a significant, ongoing commitment.