That does look more the part (pun intended).
With your permission, I would like to include your nice picture to my response in the assembly instructions thread so that it may help others.
Can't wait to see the finished models.
But getting back to the spare wheel. I'm also somewhat surprised that Rubicon Models didn't catch this oversight in the beginning. Especially since they showed us test builds (and painted examples) of these before the actual release of the kit. In the Rubicon Models pictures below, you can clearly see how obvious and awkward looking the spare wheel looks.
However, with the DAK wheels, you can see that the fit is so much better. And as you pointed out, some kit manufacturers account for this by having different parts for attaching either the regular or DAK spare wheel.
Again, a bit surprised that Rubicon Models didn't pick up on this little detail.
That being said, even if the spare wheel isn't adjust for looks, it is still a great little kit for miniature gaming.