dude...i would suggest asking a friend to take photos...if u wan group shots...then use a tripod...i can lend u one if u dun have...but must return to me
the money u can actually save it and buy more food...maybe buy something for the friend photog as a token...i'm sure everyone will be very happy there.
becoz when u have a very tight budget...it won't make any difference with the quality of photo u get compare with ur friend taking photos.
my 2 cents