Just let them know what you want, there isnt really a way to know what offers your eligible for since its based upon your account history, so offers vary from account to account, just tell them what you want and see what they can do for you. as far as how to get the best installer. They cant request a specific person, honestly when i got mine installed i just talked with my installer, i had him explain what he was doing and made small talk. And he came off as a very knowlegeable person.