As our esteemed 007 would say "Here's some information
for the DIYer one of many Quick Tips & Easy Mods in Newmar forum."
The repair as a DIY is straight forward, but the specialized tools, namely the vacuuming of the chip to remove moisture and the like, make a pro fix far better. Given your insurance will most likely cover a chip repair, it might make more sense to go pro - in the $50-$75 range, the crack might add to the cost.
I would add that IF you intend to have a chip repaired (either DIY or pro) immediately as soon as it happens pull over and cover the chip completely with tape. Cleanliness and dryness are the most critical factors for the repair resin to adhere properly and leaving that chip hole exposed it will get moisture and dirt and bug juice in it lessening the repair.