We've never gotten a good angle of that specific Kidney. Mind you that is the SE kidney plate....PROMO/AOSW/C4. Not screen used....AND good catch will....now I gotta dent this kidney of yours.... that I JUST painted
Great images @Raizo! That is (as F4R already mentioned) the Power of Costume suit with the Pre-Pro #3 helmet. Also, good catch on that back belt dent, Will! It is definitely not the ROTJ SE/AosW/C-IV back belt...
...but possibly the ROTJ Hero one (along with the cod plate, which was unseen after ROTJ):
I tried this recently with a number of vintage floquil chips and swatches. Unfortunately the lighting rendered the exercise pointless. Exhibit staff looking at me like a nutter as I was still in the same room after hours. I hope you have better luck with your attempt.