New owner of a Savage Model 10 243 help me decide on the right stock

[ClassicCannons]

Hi You all
Just bought a nice Savage model 10 243 for $280 bucks and i,d like to change the stock to a ATI one like the one pictured below i had a ruger model 77 .223 which i sold it was a nice stainless steel one but got bored with it'

I had also got a loading press and a lb of IMR 4831 powder and reloading die,s with it also for that price. and a Bushnell scope.

I,d like to get a Long range scope for it as well i ordered a bi-pod today and a laser 243 bore site i had shot it a few times because i only got 20 rounds and i need to get some bullets but i may make some solid copper ones on my cnc lathe instead.

Please let me know what stock fits it i really want a pistol grip collapse one like the one shown below but i can,t find any also can i change the barrel to a .308 also or a 22.250 or a 30.06 with out changing the bolt or do i need to buy them also and if so where can you recommended to buy them

Also can i use a magnetize for this model or just the 110

Sorry about all the were to also check out my cannon i made she is 2.5 dia by 17" with a .750 bore thanks Austin

PS email me any hints OK