Just looking at this old post again.
Another consideration is the selling price of the 308 Finnwolf as is. Two have sold recently on Used Guns for $2,900 and $3,200 respectively. Well that was their advertised price anyway and their may have been some negotiation involved.
I am no expert on gun values however you may lose out on gun value if you make the changes. Does not make any difference of course if you never plan to sell.
Rick