I'm posting a follow-up for anyone who might come across this thread
in the future. The only trick to this job was removing the nuts on
the inner ball joints. They are up against the motor mounts and with
other things in the way it is tough to get a good mechanical advantage
and leverage with a swivel. All other nuts and bolts can be easily
accessed with tools you would already have if you plan to do this
yourself.

For the inner ball joint nut on the driver's side I used a 3/8 drive
22mm socket which I had ground down the top portion into a cone shape,
a wobble extension, and several long extensions. While maybe not
necessary I removed the air flow meter box so I could see what I was
doing easier. For reinstalling I had to use an open end wrench on the
inner ball joint nut from underneath the car. You can only swing it
a bit, then have to flip the wrench, and repeat many times.
Eventually I could get the socket back on the nut and finish that way.

The inner ball joint nut on the passenger side is readily visible but
the exhaust system prevents you from getting a good angle with a
swivel. I used a lot of PB Blaster, and heated the nut with a torch.
Final touch was a 22mm crowfoot wrench with a wobble extension,
several long extensions, breaker bar and pipe extension. You have to
be really careful so as not to slip off the nut when initially
breaking it loose. Once it loosens it is possible to use the modified
socket and swivel.

About the bushings, they were the least of my troubles. I ordered the
ones with the holders already installed from Bavarian Autosport. I
installed these on my new control arms before attaching the control
arms to the car. Dishwashing liquid was used as a lubricant. By
pressing and twisting by hand I got the bushings started. Then I took
a large socket, might have been 1", set this on the bushing and drove
it on with a rubber mallet. The socket puts all the force on the
inner ring of the bushing so it won't be damaged. Note that it still
took some force to drive these on.

That being said, if I were only replacing those bushings and leaving
the control arms on the car, here is what I would do: Drive the front
of the car up onto some ramps, then jack up the back end and put some
blocks under the rear wheels. That would some room to lay on the
ground beside the car and swing a mallet to get the new bushings on.
If you had access to a lift, it would be really easy.

Christopher