what you gotta remember if your getting flights is weight, and the magic 20kg.. I've got away with up to 26kg before, but I got charged £40 EACH WAY on a flight from east midlands to glasgow for having a 30kg suitcase... this is why I don't take my own leads, I have to take power leads, but anything else that is pretty standard, get the club to provide if possible... also if you use an mpc, you can always get the club to provide an MPC and just bring your zip drive and a disk, I did this when I went to australia earlier in the year...
you could use the MPC kind of like a modular hardware version of ableton i.e. take loops of your trax, cut em up, put on a floppy, load into the mpc (It reads .wav and. aiff files), and then reroute your sounds thru your filters/ eqs using bus 3+4 on the mixer or via inserts... does the mpc have the output expansion? you can also get an fx board (same one that goes in the s series samplers)....
for the foam, you want to check out a bog standard market (Like romford market or something like that)