Gelgoog-Jager Internal Leg Modification:

Since the Gelgoog-Jager's foot is smaller than the normal Gelgoog, you are unable to use the ankle hydraulic that is given to you in the MS-14A MG kit. So instead of leaving a hole there (circled in red) I decided to add a little detail.

I cut one styrene piece to fit over the empty hole area where the hydraulic went and another to cover the vent area just above the moveable ankle area (indicated with the red arrows). I then drilled a hole in the center of both styrene pieces. Then I cut an old twisty tie to the size needed to fit between both styrene pieces (indicated with the blue arrow). After that, I cut some leftover mesh hosing to fit over the twisty tie (indicated with the green arrow). I also added some circular tubing to the end of the hosing to add detail.

Here you see the finished unpainted product. It's not much, but it does look a lot better than an empty hole.