I thought Smith was worth a 4th round pick in trade value back in March. I don't think his value has improved. I could see Metcalf getting a high/mid 2nd round pick for his $18M salary, partly because he'd could generate a compensatory 3rd round pick in the future. Lockett is due $17M in 2025 and he's not worth $10M. He has zero trade value. I could see Woolen being worth a 4th or 5th. Walker doesn't have much value because he doesn't block and he can't be used as a slot receiver.
This year's 1st, next year's 1st, Metcalf, Smith, & Woolen combined might get you to #3 overall in this year's draft.