What's stopping you? I know it might seem a flippant question but I mean it seriously.

Such clothing, or at least a plausible copy, would be much cheaper now than it was then. I don't do the kingly robe thing but I do wear colourful clothes almost every day and people love it. I was stopped in the street yesterday by a woman who wanted to take my picture.

The ones I envision are very expensive, and probably custom made. You can find them in eg Istanbul.