Well 5K will not get you very far in the custom gun world--you can buy a lot used...and get the best bang for the buck....
My blaser R8 I bought in 2009, cost $6400 and it has grade 7 wood...they go to like grade 12 I think--with 2 sets of scope mounts it was over $7K.
I have had a lot of wood work done. My 375 was built buy a guy that no longer does wood work. He charged me $1750 for the shaping and checkering, and that was 14 years ago. The blank was over $800. You could not touch that blank today for under $1000. So at 2002 prices the stock alone was $2550...
Depends on how nice you want the wood and how fine the checkering. TDK is doing some work for me as we speak...his skills are as fine as they come. If I were you I'd search the used market, there are some very fine rifles that come up for sale for a fraction of the build cost, form top makers--but your still going to shell out some coin.
Ed
Ed