Donau Wrap Conversion

I have all the materials, except my made up mind at hand. I know I'm turning this wrap into a carrier with buckles. I like how the olive drab webbing looks with this, but I haven't determined if I want a firm structured waist belt or a softer quilted belt. Do I want a ventilation panel or the baby pouch to be totally made out of the wrap? What size I've yet to determine. So I'm not sure when I'll begin this particular wrap conversion.