Welcome to the forum.
Here's another thread from a few years back posted by somebody who has one and was asking questions too:
1977 Champion Class A? 24ft multiple questions
The "Vintage RVs" sub-forum --where you posted your other thread-- probably is a better place to ask more questions as those who restore older RVs where parts and difficult to find or fabrication needs to be done, are really into the restoration of old RVs and could be of more help to you.
Hope you'll post a lot of photos as you proceed. It will be interesting to watch your progress.