The bumpers mightn't be available on a regular basis - but there's a remote possibilty that you might be able to pick up a replacement lamp on it's own if a damaged bumper has come in in the past.
Last I spoke to HMS I know they had the lamps cause they happened to mention it when I asked for a facelift bumper...
<->FTO-Ireland Shop Tiomáint sé cosúil go bhfuil tú déanach i gcás maise!
Cheapest option (and best looking option I trhink) is go down breakers yard and get a set of VW/AUDI fogs including the connectors and fit them,
Facelift fogs are very hardc to come by and expensive, but maybe try HMS as Maud suggested