Have you hauled the M3W yet as shown in the pictures?

If so and the trailer tracks okay, you're "probably" okay.

The reason I say that is that trailers need to have tongue weight and pulling your M3W in backwards would tend to add weight behind the axle.

I borrowed a friend's trailer decades ago for my dune buggy, VW powered. I loaded it normally, nose first. As soon as I got on the road and had just a little wind, the trailer would whip back and forth and was just plain scary. I unloaded and backed it up on the trailer and the tongue weight fixed my whipping issues.

I would just say put some bathroom scales under the tongue and then see if when the M3W is loaded that the tongue weight goes up.

I'd rather be safe than sorry.

Dan