I would like to buy the game to help the creator and I want to translate it into Spanish from scratch to help him only if the creator lets me

My question to you is have you even played the game before? And even if you have we aren't looking for Spanish translators at the moment. As we already have two other Latin languages that have not even finished their translations yet, those being French and Brazilian-Portuguese. 

I have a direct reply from the Dev below,

Transcription for if you use a translator for English:

Eccma417: i can only accept transalstor can work by their own

Eccma417:like RUS

Eccma417:and i update to source when they finished