OP’s barrel would have quite a bit of room in NYrifleman’s Bridges. Also, the ejection port cutout on the wsm McMillan will be longer. Both relatively minor, but worth knowing should the OP endeavor to sweet talk NYR.
Yep, it would definitely have a generous freefloat. I thought of that as well, but it's an easy button, if you don't mind that. Mr. Nyrifleman may not even want to separate the stock from the action, but that is the only one that came to mind when thinking of the op's situation..