@Stitchit1, you're discovering the pitfalls of pulling trailers with a tractor that are designed to be pulled with a truck. The tongues are never long enough. I have the same problem with both of my dump trailers, and it's why I'd really like to buy a Berkelmans Welding trailer or similar, or make my own.
I'd make up an extension that bolts to the trailer where the lunette ring is. With the proper selection of square or rectangular tubing, gussets and good welding you could make a very nice extension that could be bolted to that big plate, and removed if desired to return the trailer to standard truck use.
That thick rectangular plate with the holes at the front of the trailer's A-frame is all kinds of awesome! Seeing this project makes me wish I lived near you so that I could make up an extension. That would be a fun project and you could pay me in cups of tea!
Seriously though, that big plate gives me some ideas for my 10 ft dump trailer and a possible multi-use conversion.