Cody,
I can see the Tamiya kit is far more accurate than the RFM with respect to the width of the Belly Armor. That said the mounting rail that overlaps the side as both kits do up front should extend the full length on the Belly Armor so neither is completely accurate. I am shooting for an accurate rendering keeping in mind it has to be able to absorb some punishment from operation.
Looking at all the pictures on P/P I noticed that both the forward and aft return roller are inboard of the track center unlike the HL model. I wonder if HL found it necessary to have one inboard and one outboard for operation or it just seemed logical to them. I have the metal return rollers but have not decided on replacing the plastic ones.
Found some great pics of the mounting system for the side armor blocks. It too will be mostly unseen but it will be much easier to model knowing how they work and what they actually look like.
I realize that most of this will be unseen but I'm just O.C.D that way!
Barry