dry it in a cool dry, dark place (18c) for 14 days or 21 till the branches break when bent. then put in glass jars for 2 months but don't let any air in. then you'll have dank smelling weed.
yea id say it looks like lack of water. give it a good water at dusk everyday. a gallon or so and throw some organic tomato feed in the water to help the budds along.
spread your bets is what i say. if you just order one big lot of seeds and they get busted you'll be pukkin man. i have got seeds from them before and there stealthly shipped. and they smoke good as well.
sounds like a bad case of heatstress. make sure you've got good ventalation and a fan blowing on the tops of your plants for the rest of the grow. and you should have some good bud at the end.