Reader would not be an expensive option for Dallas in 2025. He has a salary of about $6.6 million and per game bonuses which could total another $510,000. He also has some incentives but they don't amount to much. Basically ready could cost the Cowboys about $7 million and some change. But he is in the last year of his deal. But they like 1 year deal so Reader seems to be a fit in Dallas. This trade if finalized after June 1 would give Detroit an $11 million CAP save this year. But they don't really need it since they are already $39 million under the CAP.
Reader would be an upgrade for Dallas. The only question is, what would it cost to acquire him?
I am not a fan of paying full value for players with 1 year left on their contracts. Even if he cost Dallas a 5th next year, it still seems like a high price to pay for a guy who will only be hear 1 year. Then again, it would be a big boost for a defense that needs a big boost.