That's a really cool idea, and your project so far is looking awesome. Where can I purchase some of these Revoltech joints? Hobby shops? Or can you point me to an internet store?
Toy-Wave.com is the only place I'm aware of selling the joints seperate from the figures; they come with these japanese figures based off of robots, and other anime characters. For example:
Kaiyodo's first line of these figures only had accouple, then they advanced to making the little armor pieces use them.
I just buy some of the figures and scrap them for the joints, although the figures look nice on my shelves.
They're pricey, for their size. The figure itself is maybe 4 inches tall, and there are 5 different kinds of joints:
And the biggest one is like, 1 cm thick, the ball.
I have no idea what the tool thing next to it is, it's supposed to "fix" the joints, but I don't see how they could possibly break. And if they did, how that would help it..
The set on toy wave is about $12, just search "revoltech" and look around for the picture like the one above, they have more than one set; different colors.
They sell a figure with about 60 revoltech joints, I would suggest buying that one, if you want joints. It costs about $20. But it's hard to find since it was the most popular out of the revoltech line, and revoltech has become one of the most popular figure lines. I managed to grab one, but it was from a japanese site, and they just got a restock; I think it's sold out now.
You can go searching for it though, Revoltech "Laevatein" from Full Metal Panic.