Maybe its time for you to pay for the services of a qualified elevator consultant. Frequently, the money you spend with them is saved by multiples in terms of getting what you need and not what the salesman at your service provider wants you to buy. (Keeping in mind that sales poeple get commission on sales.)
The most current version of ASME A17.1 is 2013. Many changes there and I think Illinois is looking for Fire service on elevators, not total compliance with ASME A17.1 2010.

That being the case, give C.J. Anderson a call and see who they might suggest in your area. They have been in business for many decades and have a reputation of being right and honorable people.