I still have a doubt, Could you check this sentence, please?
1) I think it would be best if our science department (head??) teacher would get in touch with you directly so that you can discuss every detail before drawing up the project.
It would be best if our lead science teacher speaks with you directly to discuss all the details before drawing up the project.
I think the "would be" and "if" conditional require the subjunctive "spoke", but that seems to be falling out of use these days.