(a) A corporation may employ an administrative staff.
(b) A corporation may retain legal, public relations, and engineering services required to develop a transportation facility or system.
(c) Through its staff and retained consultants, a corporation may prepare an exhibit, right-of-way document, environmental report, schematic, or preliminary or final engineering plan necessary to develop a transportation facility or system.
(d) A corporation may pay an employee or consultant from money donated to develop a transportation facility or system.