BM Dresses

I was thinking about having my bridal party pick out their own style bm dress. I would want it to be the same manufacturer, color, and length but they could pick strapless, halter, etc.. I have a very different sized bridal party and wanted everyone to be happy.
I have been in two weddings where the brides let us pick our styles and it worked out really well.

I know of using davids bridal separates and the Aria bridesmaid website to pick out similiar dress styles. Does anyone know of any other manufacturer that I could check out. Many of the go to BM dress makers have dresses that are too varied for this look.
Any suggestions?

I'm going to be going with David's Bridal only because I have one BM that's out of town in Texas. I might work it that they all wear the same color but if its seperates they can pick the top and I'll have them all wear the same skirt.

If it's the one pieces then I'll let them try on whatever and narrow it down to three for me to choose from.