Well, first of all I think the chances someone picks him is probably like 10% tops. The probability he sticks on a MLB roster all year is probably like 1%
I just have a hard time seeing him as a MLB 3rd baseman. And I think we could find people of about equivalent skill to those you listed on the waiver wire/FA pretty easily.
Besides, We've got Henderson and Westburg rapidly ascending the system and Mayo is looking like a stud. Dorrian is a stop-gap at best