UPDATE again!
I've managed to get skywishes, so Now I'm just looking for the sets that haven't been released in the US. I would prefer to trade with someone in Canada or the UK because shipping is cheaper to the US. In order of priority:
Cheerilee's School House
Applejack's Slumber Party
Rainbow Dash's Camping Trip
Cheerilee's Afternoon Picnic
Around me, we also have the cutie mark crusader's set, train, castle friends, and cherry pie/diamond rose. If you want to trade canterlot items, the sale will only last for three more days!