You might want to check out mysore garage on street 48

here's their website
www.mysoregarageqatar.com

They're technically sound and have a good bit of american car experience. They've rebuilt my friends JEEP engine at a fraction of dealer price. Even took care of my other buddy's Caddy (transmission rebuild)

The only issue I see would be a country wide issue in getting the parts. Everything will probably have to come from the dealer, but otherwise I don't see any issues.

You want to talk to the owner Henry +974 55 85 6229 or their service guy there Andy (don't have his number) they'll be able to sort out your dodge issues.

Hope this helps