Papee,
Would have thought that you'd have a chance with hours like that. KA are presently looking at turboprop people, but they have lots of jet time guys on the books, or so the rumour goes! Find out by applying!
The upgrade time is very variable. Guys with jet and command time fare pretty well, others take more time. Shortest possible timescale would be about 18months, I guess, to complete the upgrade, but more realistically it seems to take between 2 and 3 years.
From what I hear CX are recruiting SOs with lots more time than you!
Can't comment with any certainty on the upgrade time for CX but I believe that a freighter command could be had fairly quickly..once you're an F/O!