Kind of like trying to make a silk purse out of a sow's ear.
A cheap plastic stock is still a cheap plastic stock. I have one of those Walmart M70's in a 7mm Rem. It's shoots pretty good for a $300 rifle (what I paid 14 years ago).
But, after years of trying to do stuff on the cheap, I'm slowly figuring out that I'm wasting more time and money trying to fix the "cheap" stuff that if I had just gone and spent the money for a higher quality product.
Yes, you may have to bed a Boyds, or a Bell & Carlson, or a Richards Micro-Fit. Even a $500 McSwirly might need bedded. But you'll have a much better stock in the long run.
I'd look at a laminated stock of some flavor. Won't warp, bend, twist or flex like solid wood, and not very expensive.
Good luck in what ever you decide.
Jeff
Last edited by Owl; 05/31/16.