Involve the person controlling entry
If the property has a manager or staffed entrance, ask how supplier vehicles are admitted and where equipment may stand. Share those details before choosing a cabin or trailer. The street address and guest entrance do not necessarily describe the usable delivery approach.
Plan the return visits as well
Service or collection may happen outside the main activity hours. Confirm who remains available and how the supplier reaches the equipment. Include washing, accessible needs and the occupied timetable so the arrangement fits the property rather than only the event invitation.