trade show

Question

I recenlty posted a question and would appreciate an answer as soon as possible. My friend wants to hire a boothe at a trade show that falls on a friday and shabbat. from friday afternoon through shabbat she would like to pay a goy to man the booth. no transactions will take place. it is strictly promotional. is it permissible to hire goy to man the boothe over shabbat? what about him dismantling the booth (likely staurday night before shabbat has gone out), so that he can deliver her goods back to her on sunday? many thanks