You started an application by mistake ... no big deal. Head for the border, get a tourst visa and apply for an FM3 when you get settled. Tell them at the border you have a 4-5 month rental and the things you are bringing are what you need for the visit.
BTW there is no "menaje de casa" which used to allow free importation of your wordly goods. Just state your condition and if there is a small fee -- pay it. Just bring nothing new in the box.
BTW there is no "menaje de casa" which used to allow free importation of your wordly goods. Just state your condition and if there is a small fee -- pay it. Just bring nothing new in the box.