Hi. I'm looking for a suit to use it on M3 or David. It must be a steward suit, the typicall british male servant of a wealthy house. It can alse be any texture set to use it on any male formal dress existing. Hope you can help me. Thx.

This might be too formal, but for such characters I have used the DAZ 19th Century suit re-textured in the Poser Materials Room and with the coat-tails made invisible. For a different look, another alternative might be the freebie David and (I believe M3) Japanese school uniform (again re-textured to suit your needs). Unfortunately, I don't have access to the link for the Japanese site where they're available at the moment.

I have not seen a clothing figure made specifically for what you request.