Please don't make this like Giant's Foundry! While GF is great content that fixed a lot of issues for smithing, the actual gameplay experience is greatly diminishd by having to watch the UI at the top of the screen the entire minigame.
That entire beautifully designed room is great to be in, but all the player does is watch the top of their screen for the bars to line up. The progress bars should be on the actual machines themselves rather than all crowded at the top.
In PvM we are trained to watch for animations, shadows, color changes, etc. Boss battles would be flavorless if we were just watching their special attack loading at the top of the screen.