Hi,
My experience with clunking noise is one or more of the following things:
1. Old worn-out Shockie mounts;
2. Old worn-out and dried bushes; and/or
3. Old worn-out shockies.
I have progressively replaced all these parts, with the exception of my front shockies, and I have almost alleviated all clunking noises. Hopefully once I have replaced my front shockies, all noises will be gone.
BTW, I have also replaced all my lower ball joints and the front-end rack, which could be why your front wheel has so much play.
Our babies are moving into the heritage age, and to expect that these parts will last over 15-20 years, is a big ask.....things do wear out eventually!
You can find an example of what I have done to my baby at:
http://www.mr2australia.com/mr2play/tm.aspx?m=91537 Cheers,
M