Just an idea that I’ve been toying with, but haven’t done anything yet....
Most/all hitch carriers are too weak to support the trailer as well. So I’m suggesting you reverse order (again this is what I’ve considered, but haven’t done yet). Weld another receiver to the back of the trailer and put the hitch carrier in it.
I know it changes the weight dist of the trailer and could make your tongue too lite. But then again, if you need this than the trailer is presumably full and weight distribution isn’t an issue. The only real downside I see is you have ensure your trailer is strong enough and that the hitch carrier will be high enough that it won’t drag when you go over bumps or pull out of a dip etc.
Just an idea.