The equipment

3 speedlights
3 light stands (200cm, folds to 40-50cm 'est')
Misc, grid spots, snoots, backup batteries

These are some options I'm considering,
but I'm very interested to know what you use to get your gear on location.
Keep in mind that I need to take public transport to get on location.

Army surplus duffle bags (sample)

old lady grocery trolley
(This will look great with my lowepro backpack)
I would try to find one with four wheels for easier transport.