Renovating a WW2 era pier and beam house (SC) have rot issues.
You need to look at using this product " ABATRON LIQUID WOOD "
I have used this product to harden old wood back to structural strengh. It was used back in 1980 at the St James Church, built in 1700 in Goose Creek SC. Also this product has been used many times around Charleston, SC. for repairs of wood damage on many old restorations. Check out all of the pruducts for rebuilding wood.
What part of SC are you in.