I ran across these folks last season. Their prices can't be beat.
A friend did their Cape Cod trip and was very pleased. The lodgings were nice and the food was good.
Their mileage might be less than you want but adding on a little more isn't that big of a deal. It was about right for him. They do go places that others do not. Romania isn't a trip you see that often.
I know a few others if you are interested. A couple are Canadian companies.