I might be misunderstanding something, but I think this is not a use case for KIO jobs.
KIO Jobs are about transfering data and working on filesystem like structures (or simulating them).
The jobs work on KIO slaves, which do the actual manipulation.
However I am no expert on the KIO topic, so you might get better help on the kde-devel kfm-devel mailinglist.
Cheers,
_