Best of luck with everything… there are some good value rentals around but very very few jobs to be had, so I would make that a priority unless you can support yourselves for a prolonged time searching. Where abouts on the Costa are you headed? We live in Javea which is lovely. We are in the UK for the summer and did the ferry up a couple weeks ago with the car and kids, it was fine,
Re the dog - lots of info elsewhere on this site about vaccs and pet passports etc - just flagging up as you need to start the process very early,
Anyway it’s a friendly forum here, just ask away any questions,
Maya