How do I convince Fortune 500 Merchants to accept Bitcoin?

I happen to be lucky enough to currently be in a position to influence the CEO and CFO of a major fortune 500 company to become a merchant accepting BTC. This company is over 100 years old, has a major online presence and would be the first of its kind to accept bitcoin in the world. Convincing this company to become a merchant for BTC would make the overstock news seem sort of ho hum. This CEO is familiar with bitcoin
but only through articles earlier in the year that had negative silk road info attached to it. I could tell in the face to face meetings I have had with them that they are concerned about the negative PR that could possibly come from accepting BTC. I countered with the overstock news which had actually broken only three hours prior to our meeting and it seemed to assuage their fears. They like the rest of us are waiting to see what overstock will do I guess. In the interim, until my next meeting with this CEO and CFO which is in 2 weeks, what are some of the critical talking points you would use to convey to them that becoming a BTC merchant is a win win?

I have demonstrated bitpay to them and coinbase. I also downloaded and installed a wallet for them.
We have had 3, four hour, informal, face to face meetings together in the past 4 months where the only topic was Bitcoin.
This might actually happen they may soon become BTC merchants which would ofcourse be epic.
I am doing this for them for free in the hopes that they adopt BTC so we all win.
The important thing is that they requested this bitcoin info, demonstrations and meetings from me because I accidentally let it slip 4 months ago at our first meeting on an unrelated project that I was mining bitcoins and had purchased some ASIC bitcoin miners and suddenly the room went quiet and the CEO and CFO simultaneously said "whats a bitcoin?"and it progressed from there.
Can I count on the bitcoin community to support this company should they adapt BTC?
I can use sound advice right now.
Who out there in the bitcoin community wants to jump in and help me with this?
pm me text me email me thx!