I'll bet if you can find a decent butcher in your neck of the woods (where on the East coast of Florida are you- I grew up in Ormond Beach) you can ask in advance and he'll get you one. You might have to leave some cash with him.
Another way might be to find out who they get their primals and sub-prime cuts from. You might be able to rig a deal with them. You could even cozy up to one of the decent que places in the area, get to know the owners and ask them for a referral. Check out who is the distributor for IGA (Independent Grocer's Association) in your area. They are used to dealing in smaller numbers, and while they don't usually work directly with individual consumers, they might do a one-time thing for you.
Another possibility: There's bound to be a smoke-house that the local hunters use. Find out where this is. They often can get you the raw cuts that you don't see in the grocery stores. We have one here in Connecticut called Salem Prime Cuts. Smoke house and butcher shop attached. More expensive than Publix or Winn Dixie (Fla) or Piggly Wiggly or whatever the local mega grocery is, but you get what you pay for. When they had a fire a couple of years back, my SO actually called me at work to warn me. He didn't want me to find out from the radio going home. Thankfully, they've rebuilt.
I go to an independent grocer here in town, They give me queing tips. In fact, one of their butchers is who turned me on to home-smoking before I bought my smoker, and how to do it in the kitchen without a commercially made smoker! (til I decided what to get) It's what eventually led me to SMF!
The Brisket and Shoulder I got on Thursday, I got from a family owned place called Stew Leonard's. They started out as a Dairy Farm, then a Dairy Store, now a grocery (4 stores, limited number of items) with a fantastic meat department that will cut to your order right in front of you! They make their own cheese in-store, do their own jerky and so on. (StewLeonard's.com) They even go visit the ranch they buy their beef from and have videos in the store and visits from some of the "cowboys"! They give you the source of most of their stuff.
who is going out to the kitchen to put SoFlaQuers finishing sauce on her shoulder and brisket shortly.