Suggest if my planning is a good Idea to sell in English/Spanish Market!

I'm digital productor of a online Tool and want expand to English/Spanish Digital Market, and want know what is the best way?

My doubts are:

In my country (Brazil) the domain tool is in Portuguese language: e.g: "ferramentademarqueteiros.com" (that is no real domain)

But I need a "International domain" to translate for English/Spanish, like:

marketertool.com/en (ENGLISH VSL)
marketertool.com/es (ESPAƑOL VSL)

and the Panel to Login:

en.marketertool.com (ENGLISH PANEL)…

Suggest if my planning is a good Idea to sell in English/Spanish Market!