What are you going to use the rifle for? I'd be happy as a pig in schitt with a rifle that shoots "several groups of my handloads at 0.6 MOA".
This ^^^^^
You can dump a ton of money into that rifle, if you so desire, but it is unlikely that you will see a return on that investment. Determine what is important to you and go from there.
I have some rifles in Mickey stocks. They are great, but not from an accuracy/$$$ perspective. Just depends on what maters to you. If you think that upgrading to a Mickey is going to magically shrink your groups, you will be disappointed. If you like the feel of a Mickey, you will be pleased. What say you?