I had a similar set of interchanges to deal with (though not nearly as complicated) when riding the highway on my morning commutes. No amount of shoulder checking was sufficient, and making a full stop to wait for a break just meant I wasn't confident I could actually cross the lane fast enough to avoid traffic I hadn't even seen yet. As a result, I gave up on that route and added 4km to my trip to stick to non-highway bike-laned roads - even though it meant losing the longest free descent stretch anywhere on my trip. I could just see so clearly that a fatal disaster was inevitable if I kept trying to cross those merge lanes and off-ramps; it was only a matter of time. Your interchange looks even hairier than the ones I was dealing with. If you have an option to ride a different route and avoid that mess, I'd take it.

edit: Looking more closely at the map, I notice S. Orange Blossom Trail paralleling S. John Young Parkway a kilometer or so to the East, with a full bike lane as far North as Central Florida Parkway. Knowing nothing about the traffic patterns on those roads, I can only speculate, but maybe that could be an option?