Following on from my local garage's run-in with the rear wheel bearing on my mig (14 hours it took them! - shame I'd got a firm price of £70 + the bearing

)
Driving home from the garage after collecting the mig, I started to get a rattling noise from the same wheel

Got home, stripped down the brake
using this:
http://www.omegaowners.com/forum/YaBB.pl?num=1152564750 and it looks as tho the pin[1]
which holds the retaining springs on the handbrake has bent, and pulled through it's hole in the splashguard.
It looks as tho I'll definitely need a new pin, and possibly a new splashguard (depending if I can use a washer to bridge the hole)
Can the splashguard be removed without taking off the hub? (and thus needing the bearing pressing out/in again)?
Is there a part number for the pin?
Worst case, I can probably bodge something to make it work, but I'm hoping for an easy fix.
I *could* take it back to the garage and say "you did this - get it fixed", but they are good lads, and I've definitely had my money's worth out of them today

[1] Picture 7 in the guide, shown as being removed with long nosed pliers