Is heating it my last civil method to remove what...

[xHeart]

It looks fine. That small chip is nothing to worry about.

Just cover the steering rack's end with ziploc bag and rubber band while you wait for new parts to arrive.
Dirt is the #1 enemy of the steering rack.

PS: During install, just remember to use some rubber material as cushion between pipewrench and the rack's end to prevent further chipping it.

I notice that your trans is also exposed. Get a piece of plastic/masking tape and tape the ends of the auto trans (I understand that you removed the axles for rebuild) to prevent dirt/debris/bugs from getting in. Even the slightest amount of dirt is the worst enemy of the auto trans.

I vacuum around it. Clean with paint thinner and placing ziploc next.
Will I use loctite or anti-seize when putting inner on rack, and outer on inner?

[cn90]

During install of tierod, a small dab of antiseize is fine.
These tierods will last another 100K.

Considering the age of the car, I don't think you will ever replace them again.
I might be wrong though.

[xHeart]

During install of tierod, a small dab of antiseize is fine.
These tierods will last another 100K.

Considering the age of the car, I don't think you will ever replace them again.
I might be wrong though.

Replacing all at one time as you have suggested in your DIY. It is insightful.
Removing tie-rods in one piece leaves me without the count of # of counter-clockwise turns on outer-tie-rod. I will have to work with the measure of length to get closer to alignment now. Are there other indicators?

An exciting day to start putting it back together.

Many thanks.