If you use an accustock you'll have to change out the recoil lug or modify it to fit. Also I think there may be some small dimensional differences in the trigger as well that may need some adjustment for clearance.
I have done a lot of economy projects and tinkering by upgrading factory parts over the years and would probably just bed the existing stock with JB weld and then give it a nice sponge camo paint job.
A couple of other things you may consider if you just want a project would be to maybe change the length of pull or the height of the comb, add a home made adjustable kydex cheek riser, or even use some epoxy to change the grip angle or fatten it up.
The factory stock is pretty much a blank slate for tinkering.
Good luck and have fun