I decided to get a mini dress form for my design development uses. It is a half size dress form (size 6) from PGM Pro. I shopped around from stores in Garment District who offered $150 for one dress form. I finally found it from PGM company eBay store for $116 plus you get some extra patternmaking kit and free shipping and no tax (except CA).
So today I started basic draping to get a basic bodice, torso, and skirt slopers for future design development. It is harder than I thought it should be to drape this half size. Keep in mind, this is a half size but it "feels" smaller actual half size.