I agree with RSN that this is not the place to discuss anything other than Moebius kits. However, I will answer this one question on the PL J2, and then suggest that we move on.
The design goal of the PL J2 was different than the Moebius in that there was an attempt to reconcile the upper deck to the hero miniature contours by expanding the working radius. As such, certain liberties had to be taken with respect to spreading out the various components to the extent that it was not a match for the actual studio set. The concept is neither better nor worse than the Moebius approach, but simply different. The tooling and execution are obviously superior on the Moebius model.
As a result, the PL J2 scale is also quite different, despite the reference to 1/48 in the manual (which I never agreed with). Now, if you reference the scale of projected figures to the heights of the hatches and freezing tubes, which is something that I always advocated, some choices do become available.
My suggestion is to hunt down a kit of the old "Invaders" spaceship model, as it contains a number of figures that, when painted properly, become very believable selected members of the Robinson family. I actually used two of these for my scratch build, and I believe Cult still has the images on line. The one holding the microphone (on my model) looks remarkably like John Robinson.
I hope this helps.