The front arms/blades are from a Mk4 Golf front arms:
W1J2 955 410 D
W1J2 955 409 D
front blades:
W1J2 955 425 B
W1J2 955 426 B
front wiper arm cap X2:
W1J0 955 205 A9 B9
The rear arm is from a Polo (9n)
The rear wiper is from a Touran
rear arm:
W6Q6 955 707 C
rear arm cap:
W6Q6 955 435 D
rear blade:
W7E0 955 425
think it adds up to something like £130 iirc from the VW dealer
edit: btw, you dont need the front wiper arm caps, the ones you have will fit on there fine