Just think of the insane amount of labor that would be required to manually sift through every inch of ten plus years of accumulated garbage searching for a tiny little object.
i think the garbage dump kept computer records of what zones they put garbage in in different time periods so they could narrow the location down quite a bit and not have to search the entire garbage dump.
Who does he think is going to perform all that nasty work for him? Who on earth would be willing to do that nasty job?
i think he had a business plan for that and had investors maybe. not sure.
How many months or years would it take? Is he going to do it by himself?
it wouldn't take very long if they were just looking in a small area. probably months at most.