Marbella is surely not the place for knives, but I am sure you can get anything you are looking for in Malaga. Ask for a "cuchilleria", a knife shop. You will be able to find lots of 10´´ bladed folding knives, with a curious locking device we use (a set or maybe 8-10 notches to keep locking it in place by incremented angles). Good ones are not cheap, but we use them since 200 years ago, so they are well proven designs.
Stay clear from Toledo knives in general, since they tend more to do collectors items than real use stuff. Albacete is excellent for field use blades. Also their kitchen knives are good.
Last thing, make sure the axis is sturdy enough, because they are intended for flick opening, and sometimes they can break if not properly done (spend your money).
About training, I don´t really understand what you are looking for. If you can be a bit more specific I may be able to be of some help.
Have fun, and stay in the shaded side of the street.
Jaime.