Are there any fixing kits out there or any guides on what people have done. The bolts appear to have been kept in place by taps like so:

So when they break off leaving a rather large whole, they best I can think of is getting replacement taps(or whatever they are called) and weld the tap, bolt & a washer together then bold the washer to the car, then the clam can be bolted on from there.


Any comments/advice welcome
cheers
Steve