Yep, that's the power steering bracket. I actually just dropped the motor in yesterday - finally! Now I have my work cut out for me, getting everything hooked up and running.
You can use the Wiseco pistons with factory rods. 'Slugs' is just a slang term for pistons. 99% of the time these blocks don't have to be bored, even with 200k+ miles on them. They're very tough! Have your machine shop measure the cylinder bores for runout. You'll probably be able to get by with just a re-ring kit. Between the pistons and machine work, that should save you $600-$700 or so!
Unless there are big gouges on the crank journals, the machine shop will probably turn the crank .010.
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Trust in the Lord with all your heart and lean not on your own understanding.
Proverbs 3:5
1989 Mustang convertible w/built and turbo'd 2.3.