Front rack mounting? I use a MTB from 1995 for commuting. I've just added a child's seat up back. So I need a front rack or basket mounted.

I found an old basket that I mounted temporarily. 

What are my mounting options? I'm not super keen on using the wheel axle (as now) but if I want to use the fender mounts I must use some spacer there?

Would you recommend mounting it to the bars, crown or canti bosses at the top?

It would be great to be able to carry 10 kilograms (22 pounds) in the basket, so I can stop and shop groceries on my way home.

I wonder how the Wald 157 Giant basket is mounted? Seems to be mounted through the QR axle. That might be working?

All recommendations and tips are welcome!
I have seen one that mounts to the brakes but do not know where to find one.