Sorry to say but you most likely will not find anyone to fix it in time. There would be no repair places that actually carry the parts for it as Sony uses contracted repair centers for this sort of thing and usually do not sell the parts to third parties. The problem is most likely the disc drive laser.
The quickest solution would be to maybe buy another while it is getting repaired (making sure it can be taken back for full refund after getting original back) or if a friend is willing to lend out their unit for the trip.