I have been trying to read a lot here and elsewhere but want help. I have an older model 16 300wsm flat back large shank 4.2 screw spacing. Im wanting to change to maybe a 6.5 creed, 6.5x47 etc. I figure why buy a stealth when I could possibly change what I have. So question is. Do I just change out the bolt head to proper size, order barrel nut wrench, newer large shank nut and lug, choose caliber of barrel (CBI etc.), go / no go's and find stock? I've built a few ar's so this should be similar.

Thanks