Hard Zero,
Ah a road trip! I was thinking about doing the same but have had to sell the motor for additional funds.
I'm not certain but I think you need a spanish residency card to the obtain local insurance cover. This I think the college may be able to provide you with but only after an alotted period of time.
Give Mary Jo a call or Mike Wallis at BAE and they should be able to help.
Have a safe trip and look forward to seeing you spanish time!
Chris