What's needed for stock steering wheel change?

What materials do I need to convert from a rim-blow wheel to a "partial horn ring" wheel?

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The rim blow wheel on my 1970 Dart Swinger is cracked/ and non-working and just all-around gross and nasty. I love the look of the S-79 partial horn ring wheel and would like to convert to that. My understanding is that it's a 1970-only wheel and can fit all A-, B- and C-body cars. **Is this correct?** (I know that earlier years has narrower columns that are a no-go).

I have seen the S-79 wheels for sale on ebay and all for really high prices, and i also see just the center horn pad part. The wheel rim itself is available as a reproduction which is fine with me, but it says in the ads "Use existing hardware to mount". So I guess my next questions are, do the rim-blow wheels use the same mounting hardware as the S-79 wheels? If not, is there a mounting kit for stock wheels I need to buy?

Being the relative noob that I am, I need to know the complete list of stuff I would need for the conversion, so I come hat-in-hand to ask you, the A-body experts!
Any suggestions? Thank you in advance!
Manual or power steering on your car? Manual steering you will hate the full circle horn ring wheel.