You should not need a spanner nut wrench. I never needed one and I had the IC tubes off quite a few times, it is much easier to leave the top and IC tube connected. Just take it off at the IC.
The fuel rails you can swing right over the side of your car, should sit right where the front tire is, I had mine off as I had to get to the exhaust maniflds to take them off.
To remove the power stewering pump, you will need a pulley puller, you can get one at a parts store, I got one here for 6$ for the day.
For the ac, I just set it off to the side, I did not disconnect the lines.
Ratcheting wrenches are a BIG plus when it comes time to working behind the heads.
If you wanted to be more proactive, now would be a good time to get the heads freshened up and ported, but, I am not sure the condition of your heads or if you have future plans down the road.
Just take your sweet time, and do it right. No one likes a rush job.