Hi everyone,
My girlfriend has an '01 L300 that has spent its entire automotive
career leaking coolant from various places - trans cooler, radiator,
water pump, and now it seems the head gasket (at least according to
her mechanic - I thought I smelled some vaguely "sweet" exhaust a
while ago, but was convinced that the MIL code she was getting was
from a bad MAF [code for lean, right bank]).

bit ridiculous - there's not even a bootleg CD-ROM manual on ebay!

So does anyone know what is involved in doing a head gasket on one of
these motors? I doubt the head itself is damaged, as the car has never
overheated. I'm hoping for a quick gasket replacement, and maybe
having someone clean up the face on the heads. Is this do-able with
the motor in the car? (I'm young, fit, and stubborn, so discomfort is
not so much an issue as sheer mechanical impossibility). Any crazy
tools needed?

I know there's not a lot of these cars, but surely somebody,
somewhere, has torn down the top end of one...

I think I'm probably going to pass on this one - but for reference,
here's a site that says it will rent out the timing belt cam and crank
holder tools!

http://www.ledfix.com/timingbelttoolrental.html