The 7" headlamp fits an '03 but you may have to create new mounts that is an easy job. I did that for mine with Autopal Crystals. The UK ones are likely to be left hand dip and may not be appropriate for Greece (OK for Cyprus though).
The beam problem you may be experiencing with the HIDs is that the bulbs don't have the filaments in the same place as the H4s and with a complex reflector the pattern is all screwed up. Try the lamps with standard H4s that are now available in +80%.
BTW HIDs in a 1303 will require a levelling system to adjust the beam on dip to comply with European law and also require the specific original (HID) reflector for the reason I have explained above. All that is to protect on-coming drivers from being dazzled. Please be a considerate driver and get the correct lighting kit.
