RE: Headlight mounts/adjusters
Joy, good pictures here
http://www.gowesty.com/Merchant2/merchant.mv?Screen=CTGY&Store_Code=gw&Category_Code=vp-e-lighting
and here
http://www.van-cafe.com/search.do?rp=%2F%3Fpa%3Ds%26pct%3D467569955%26ct%3D1110677742

I went through this a couple of months ago when installing H4s on my '90.
Based on that experience (and advice from the lists) I'd recommend a FULL
set of mounts/adjusters.  The old one are near impossible to remove and
reuse.  Not designed to be removed and brittle.
Also, I had to really work to get the new adjusters installed, very stiff
fit.  Maybe someone on the lists has advice on easy install, not obvious to
me.

I found good info on doing the alignment here:
http://danielsternlighting.com/tech/aim/aim.html
I used those instructions and some masking tape on a wall, worked well and I
got good alignment first try.  One hint.  If possible put some weight equal
to the driver into the van when doing the adjusting.  I didn't and am a
little lower than I would like.

Or find a shop that can do the alignment.