Welcome to the Forum!
I wish I had an answer for you,, but not too many folks swap around stocks on the Mini's from what I've seen. Even here,,, they are not often discussed.
However,,, I have seen Mini-14 stocks, original wooden factory ones sell very reasonably, so if you experiment, and it doesn't work, you won't be out much, and I'm sure you could sell it for close to what you gave.
Give it a try & report back,, I'm curious now.