Ron,
Sorry to hear about the damage. I'm kind of leaning with Shari on this one. To get it totally gone, a replacement panel might be needed....however, when I look at the different photos, it looks to me like the dent from the side view is almost non existent. I would say that since you have exp pulling the insides apart, you could pull the inner skin and try to slowly and with very little force start to pound it out from the inside. This won't get it to 100%, but it will get it a bit closer than it already is......
What a shame.....I also agree with Summerkid, if the person was gabbing on a cell, I'd have no problem hitting them with $1,100.00. The only problem I see is that if the driver understands the fact that the coach was illegally parked, not licensed to be on a public street, I could see that persons insurance company playing games as they always try to pay the least they can......
Is your coach insured? I might be inclinded to get them involved too since they will beat on the other insurance company for you. I had a similar issue when someone hit my car. The other driver's insurance company wouldn't pay squat cause it was an older car. At the time I still had full coverage and told my insurance that I was going to file a claim if the other company wouldn't pay. My agent told me that I should file a claim with with him, and my insurance in turn will fight it out. I had to pay my deductable, but about 4-5 months later, it came back in the mail.
Eric