In amateur radio at that data rate you will significantly exceed the FCC specifications. That's one good reason why you were not successful finding any commercial transceivers that will do what you need. I don't remember the numbers off the top of my head but you can take a look at Part 97 to see the specs and you should also take a look at other applicable FCC regulations related to your setup. You'll need to look at allowable field strengths, restricted frequencies, etc. Depending on your frequency of operation you may be fine designing and building something that will work but that's a high data rate to have to deal with. Good luck with your project. Hope it all goes well. When I was in engineering school almost 40 years ago we didn't have projects as neat as this to do!

I will definitely take a look at part 97 again. Thank you for the heads up! I appreciate your input.