Front End (frame) replacement questions

I am replacing the front frame section (doghouse) on my 67 barracuda, using the front end from a 74 scamp that I parted out. Below are a few questions I have before I get started on the swap.

The Scamp was a 6 cyl car, my barracuda has a 273. So while the guy is doing the swap, he will be putting in a 73-76 spool type sb k frame that I bought. What T-bars should I use, the scamp has the 6cyl ones and my barracuda has original sb ones. Do I have him put the original ones in with the new k-frame?

The scamp has a power steering box on it, what all will I need to do to make this work with my original 67 steering column?

As I attempt to get the new k-frame ready for the replacement, should I do any reinforcing to it? Some of the original welds don't look the best. I was thinking that one of the mags did an article on how to do this, but I'm unable to find it.

Lastly, what color was the K-frame originally? Any suggestions on what paint will hold up the best?

Thanks in advance, sorry for so many questions in one post.