I just picked up my Off Grid Expedition 2.0 on the first, 2021. Randy at LeadDog was able to attach the XO jack for me. It’s awesome.You might be able to DIY something with the rear receiver but it is pretty hidden under the trailers. There are some tire swing outs available but I would have to hunt for a name. Then of course that could be in the way of the rear door.
Finding a way to put an XO Jack on the front for mobility reasons would be a big improvement. I did a DIY solution on my Turtleback with the same factory receiver but there was way too much play. So that is a no go. I need to find a way to bolt one on the tongue. They make moving a trailer with a higher tongue weight easy.