We fired up our mobile oven last weekend as well- had a successful afternoon at, of all things, a circus demonstration/ public workshop event in Wellington, New Zealand....
Made about 45 x 17" pies in 4 hours selling by the slice (6 per pie)
Had some really good feedback- New Zealanders seem to be taking to the NYC style pies and everyone is intrigued by my fairly amateur displays of dough spinning!
A photographer friend came along and took some nice pics for anyone who is interested
Cheers