how can i buy and design my website with

[sri harsha]

own maintenance and server?

[Mason F]

If your asking on here your gonna need a ton of help.
Youll need a server computer with a internet conection and yould need to set up and pay for a domain.

[codelyokodream]

you buy a domain, or a dns route. as for a server, you run Apache HTTP Server on it.