So I foolishly rushed into buying a cheap car seat that is not isofix and does birth to age 4, RF/FF. I've tried it in my 2003 Seat leon and I'm not happy with how secure it feels so I want an isofix base plus bucket type baby carrier that clips in, the type that you unclip and it has a handle so you carry inside if baby still asleep etc. Now I know you can't put a price on safety but I really don't want to pay 130-150 for the seat plus 100 for the base when it'll only be used for 9 months ish. Help.