Thanks for helping! I got the domain and ready for the hustle. One think i wanna tell is that i have zero knowledge and interest about the content of previous owner. Old website is based on traditional medicine techniques (before christ) but the domain has keyword medicine so I thought i can use it for affiliate medicine products. As per your suggestions i will start with copying the content from waybackmachine. But the problem is that type of content would not let me use affiliate products much.
Will i get the link juice even if i post different content (like medicine for diabetes ) instead of old content?
Or i should procced first with copying and later change it with what i want
Rebuild the same content with the same url structure will be good (or redirect http to the https and other possibilities depend on what the nice backlinks currently pointing to), while adding more articles once you've got new ones ready.
I believe, it's good keep the old ones for a while, later on, just alter the content of the old pages (where the backlinks go (instead of deleting the pages) so the urls will still be the same (otherwise, when you have new articles written, redirect the backlinks to the new pages)
New pages will get the benefit from the main domain, plus if you redirect the old urls (that got the backlinks point to) to the new ones.
Of course, adjust the affiliate products with the new content, not the old ones.