So is your friend intending to do the reapirs himself?
A front bumper for my 2001 (slightly different) was less than $200, but it comes primered only (plus you need the impact foam behind it) and to get the old one removed, new one painted and installed, the total cost was about $600-$700 dollars with everything. I just got that quoted the other week.
try
www.carparts.com for random parts. Sounds like you will need tie-rods as well as a wheel and hub, maybe an anti-sway bar, maybe even axles. I would think everything attached to the wheel/hub should be inspected for possible replacement.
Even if your friend is doing this himself, he should get a quote (usually free) from a body shop and that way he will know what exactly needs to be replaced, plus the quote will have the prices for the Toyota parts and maybe even part #s.
Hope that helps
Chris