I need recommendations. I am due in November, and will be decamping to California for a month the following April. I need a travel system that (1) has a carrycot (2) folds well/is lightweight as its going to be checked onto the plane (3) has a single handle as I need a hand free for Dd (4) has a tall enough handle for a 5 foot 8 mum (5) and includes or can take a non-isofix rearfacing car seat. Finally, I really really don't want to have to sell my firstborn to pay for it 
Any recommendations?