I have been very very high on Weegar for a few years now. IMO, he's a #1 D on the vast majority of teams. He doesn't score a billion points, but he's extremely solid defensively on top of getting 40+ points. He's in the "do everything well and nothing poorly" mold.
That said, I think Florida realizes how good he is (He was 8th in Norris voting in 2020-21 and 14th this past year) and will be very expensive in a trade. Honestly, I think his value is about dead even with Miller, but maybe a smidge less. Something like this would be fair I think:
To Van:
Weegar
2023 3rd
To Fla:
Miller
That said, I'm not sure if they can re-sign Miller, so it may not fil their bill. Regardless, I think fans should be aware of just how valuable Weegar is. We're not talking about a 2nd pairing guy here--he's a bonafide top pairing guy who can play very heavy minutes and do anything.
Additionally, because he's so good and has only one year left, he will probably be looking for a massive raise on his next contract, in the neighbourhood of $7.5M+ IMO, so this doesn't avoid a big contract coming up, it just transfers the issue from Miller to defense (if we were to move Miller for Weegar, which I'm not sure is what FLA wants).