Perhaps they have all retired to the Bahamas?
Producing 'good coffee' is, apparently, quite a skill and needs sigiificant training and experience. I would also think it is quite a slow business... often you seem to have two people... with one just making coffee to order.
this trailer van is in Bognor....
http://www.ebay.co.uk/itm/Piaggo-ape-coffee-van/112115840008?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D38624%26meid%3Daceccf778c3f46789d4a41f32b9f47fb%26pid%3D100005%26rk%3D3%26rkt%3D6%26sd%3D232067656809
It's not exactly local... but is Mrs G thinking of investing in this sort of thing?
http://www.ebay.co.uk/itm/Mercedes-Vito-Mobile-Coffee-Van-/322235575210?hash=item4b06bcabaa:g:lbQAAOSw-itXuY0G
Interesting idea... started a bit of Googling... very mixed messages... but I am sure some nuggets of good advice!
http://www.mobcater.co.uk/should-i-invest-in-a-mobile-coffee-van-cost-14000.html