You can pick up a mauser fairly cheap, and either have a smith do the work or you and your son could do the project. Not really that hard Midway has aftermarket drop-in trigger relatively cheap. They also sell some boyds stock for 96 mausers. When you were finished it would not be just some gun purchased but a memory, to go with the hunt. Check out my humble attempt on custom guns "Sweet Swede" and I am no smith
but I am entirely satisfied, I was already offered 600 for the gun but turned it down simple because you can't buy the memory.