please do not plan for teak tree plantation , its not at all lucrative.
All those claiming for a better yield and price after 10 - 15 years is a humbug , a fully grown indian origin teak tree aged close to 20 yrs ,sells only for 2000 - 3000 a tree.
That also people make you very desperate.
please reach out to any nursery who provides tissue culture teak and ask them if they do a buy back.