Without details it's impossible for us to tell you how to price any of this stuff. But I will say if your goal is to make money off selling your services, then

Without details it's impossible for us to tell you how to price any of this stuff. But I will say if your goal is to make money off selling your services, then yes obviously you should include a bunch of line items in your proposal for hosting, support, etc. When you offer them a proposal, try to establish a few tiers ranging from "way more than they'll probably pay" down to "what you think they will pay". Don't ever say "we could go lower" unless it's coupled with "but only if we remove these features". A 30,000 person company is likely trying to buy enterprise software from you, so read up on how enterprise software is priced and sold. Don't sell yourselves short.