In you case you are unaware DVCers have access to DME and it is free. You likely already know this, but I am just posting it in case someone new reads this and thinks that DME is not available to DVCers.
When I have made my last 2 ressies the CM always reminded me to call back as soon as I got my flights to book DME, if needed.
I see you can do it yourself on the member website, I'll do it there or call MS about 2pm, don't want to cause some 7month day by day people to get waitlisted while I am booking DME.
We just used Tiffany in Dec and they were great! I cannot remember the gentleman's name that picked us up but he was super nice...his wife and kids are CMs...it was $95 round trip plus tip...not bad....They will even do a grocery stop.