Relocating to Madagascar from SA - need to know all formalities behind

Hi all.
I would like information on steps required to relocate to Madagascar from South Africa. This would include obtaining a visa, job employment, Accommodation, Cost of living, Health,Tax etc.
I understand that i would have to learn to speak some French before moving . I love the outdoors and this country is so diverse in fauna and flora being one of the reasons for wanting to relocate. I enjoy all outdoor activities and sport mainly surfing. I have vast working experience within a company ranging from sales, management, HR. daily functions of business. I have worked for brick paving , Asphalting  company's and worked as a Production Manager manufacturing bituminous products for road construction. Currently i own a Security Company.
I would be able to use my expertise to teach others in my fields for social upliftment and i would be an asset to this country.I still have many years ahead of me before retiring. I'm looking at the Tulear region but not a must.
Thanks
Hoping to here from someone soon.