Perhaps I should buy a laptop of my

Perhaps I should buy a laptop of my own.

Results (Chinese) 1:

也许我应该买我自己的笔记本电脑。

Results (Chinese) 2:

也许我应该买一台自己的笔记本电脑。

Results (Chinese) 3:

也许我应该买一台我自己的笔记本电脑。