A stock swap would do it. Boyds offers some good ones or you fin one at a gun show easy.

A crack can be repaired in many cases. Look at websites that deal with old military surplus guns. It's very common to make repairs on cracked stocks with old milsurps. Acraglas is good cause you can drizzle it right in. I've used devcon two-ton epoxy on a mauser and a mosin-nagant to good effect, though I didn't have to thin it. I'm guessing you could thin it with acetone if you had to.