Hello Sir,
I have pretty 10 years of exp in sugarcrm customization and support. i have sugar 3.5 version installed. I can upgrade your system with latest one.
You can choose either upgradation or migration. i can do migration also in latest system with all customization.
I have done 50 projects in sugarcrm and have good portfolio. I also know spanish, and i have many spanish clients in Colombia, Peru and Florida.