its your call, but i would encourage you not to do HID's without doing a full retrofit. The Retrofit Source has a 4" FXR drop in projector that replaces the stock one. This would also allow you to use OEM components. A proper HID retrofit shouldn't cost less than $1000 all said and done. Anything less than that and you're cutting corners some place that is going to compromise quality and reliability.
Do you have experience with Ram projectors with Morimoto HIDs? I'm not saying you don't just that your recommendation doesn't jive with the actual reviews on Ram forums of people with those particular factory projectors. All I've seen have been glowing reviews unless they used a junk kit.