Scott,
You can generally try an move the wheel in & out top & bottom & side to side while some one looks at the suspension components for movement.
The lower ball joint gets a hard life & if the rubber boot is bad, it will be bad. The LCA & UCA inner bushes often look good on the outside but often the rubber has collapsed on the inside.
There are a few DIY wheel alignment pages around, I think there is a bit of info on this site.
The LCA inner bush center bolt has eccentric washers on it. As a first quick fix, you could loosen the bolt an turn it so as to move the LCA arm in a bit. This should stop the tyre carnage. It also ads a little toe in that probably is needed.

Best of Luck With it.
Hope your lad learns from the experience!!!

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving