Took a look at my 1/55 VF-1S Strike Valkyrie and my eyes met with the box of the 1/55 Armored Valkyrie GBP-1S (originally made by Takatoku in the early 80's). I opened it up for old times sake and was looking at the manual. So I said, what the heck? There could be some person of the same interest as I wondering right now how to install the 1/55 GBP-1S on a 1/55 VF-1 Valkyrie. The chest part is actually quite tricky.
Might as well jump into the Christmas Spirit and help him about by translating the manual. Click on the image below to enlarge