I basically used standard gowipe to get me to crystal I as a townhall 8, my troops weren't maxed either (level 2 pekka, lvl 1 golem, etc..) I found this to be very effective at guaranteeing a 1star and I never ran out of resources, I actually gained more then I lost! other strategies are balloons/minions or barch which is difficult to master for me at least
