There's a couple of things you mention where you're looking a little confused still. First, DAZ 3D have a range of figures, male and female, which use the same basic mesh and UVmapping, which means that a skin texture for one of the set can be used on any of them. There's six adult figures in the set, three female and three male, starting with Victoria 3 (or V3) and Michael 3. Clothes for one don't fit the others. There are "male morphs" for the various versions of Victoria, partly because DAZ always seem to have taken a long time to release the purpose-built male figure. Some clothing sets, such as the V3 "MFD" have the morphs: this may be where you've seen the medieval clothing you recall. It can work for figures wearing long robes, such as a monk or wizard. Clothing conversion programs might help get what you want, or they might just giev you a few rough ideas. I use Wardrobe Wizard, but male->female and female->male conversions can come out a bit oddly. Essentially, the bigger the change in shape needed, the more the chance of something coming out poorly. Now, I don't think this effort of mine has come out badly. But, frankly, if you can't do your own drawings--pencil and paper--and come out with a better illustration than this, you may be in the wrong business.