Hi link4,
you posted almost one moth ago, but as nobady has provided you with an answer I'll try it now.
Malaga Int airport is not very GA friendly. It has some restrictions to GA operations. For private flying the choice is Leoni Benabu airdrome located some miles east of Malaga Int. There is based 'Aeroclub de Malaga' where you can rent an Archer for 200 €/h with safety pilot.
I have to say this rate is well over the standard for Spain.
More info about this club in the following link:
http://www.aeroclubmalaga.com
I'm not sure if there are other options to rent apart from the club.
Concerning the air traffic, no problem at all. It can be heavy only during summer/holidays in the proximity of Malaga Int.
No problem neither with the trip to Jerez, as it is very GA friendly since there operates 'BAE Systems Flight Training School'
About charts, you can buy one of the Spain ICAO chart 1:500000 edited by 'AENA' or one from Jeppsen. The first can be bought, for instance, in the next link:
http://www.buckerbook.com/info.asp?ref=AENA
And for aeronautical info, you can browse Spain AIP in the following link:
http://www.aena.es/csee/Satellite?ci...O=2&lang=EN_GB You have to register but it's free and you only have to provide an email.
Hope this helps...