Hi Mate,
I got a Shakespeare Expedition(?) rod off ebay that was really cheap really small too 9′ but pack size in tube is only about 18″ also in a 10-12 wt which may be better for the big flies needed for bonefish.
As for a reel possibly cheaper the better as the salt water will wreck anything but a serious reel.
You may want to see about hiring a set if it is only for a day then you won’t have to bother taking it as luggage?
I have found Grangers in London to be superb for help and advice as they also specialise in fly trips to places such as cuba.
http://www.grangersfishing.com/ ~clap