Sounds tantalizing but no one is going to give you permission to hunt their land--especially if they know what you are looking for. I've thought about going up and hunting Aravaipa Canyon Wilderness as that is an old area and probably some nice finds lurking about(at least the camping areas will probably produce some coins). There is a day-use fee required.
That person and any goods or money are long gone from there! Why would anyone murder this man and rob him of his goods and hang around there o be caught He would head out before anyone found him !