Fabia headlight unit - help needed with part number

Hello All

My MOT is imminent and the two fixings on the top of the O/S headlight are broken (standard unit, not Xenon). The garage re-glued them to pass last time, but I don't want to tempt fate...

I'd like to replace the unit, so I've searched VAGCAT and found the following three part numbers for RHD vehicles:

halogen headlight / F >> 6Y-2-327 442*

right rhd /(1) 6Y2941016H

halogen headlight / F 6Y-2-327 443>>*6Y-3-725 552*

right rhd /(1) 6Y2941016R

halogen headlight / F 6Y-3-725 553>>*

right rhd /(1) 6Y2941016AA

I'm unsure how to identify the correct one for my car (05 plate VRS) - I removed the headlight from the car but couldn't see a part number. My service book shows the car model as 6Y2585, so would this be the part number ending "R"? Is there a significant difference between the parts I've listed?

Would a kind soul be able to help me?

TIA

SF666