I am a little confused
if you are starting ground school I assume you have a PPL and therefore at least a Class 2. If integrated then did they not ask / at least recommend you get one ??
The bottom line is if you want to fly planes for real then you will need a Class 2 for PPL and Class 1 for Commercial.
So how sure are you that you would pass the CAA
medical ???
Check out the requirements
http://www.caa.co.uk/default.aspx?ca...ype=68&gid=211
Class 1 medical is ~£400 at your stage you may want to consider it as a insurance.
Good Luck
edit: sorry just noticed you are in Cyprus.... but most of above still applies to Greek or (Turkish
) civil aviation.