Managed to source a pair from Stevens VW at 23.50 delivered which seems quite reasonable. Might try bodging the old ones out of curiosity to see if a cheap fix is doable
the main thing that goes is the slotted end rusts off so they just fall out of the deflector, prob easy enough to weld a screw to the end and file it to a slot shape if you can be bothered
I've never tried welding so improvised a workaround with 3mm stainless steel and a vice Not the best looking but cheap and works fine