I finally got the pattern for the twinset so I post the Opal Saphir yarn on eBay. The twinset is only written in size small. That wouldn't fit me for sure so I will be working on the math today to try and make this pattern to fit more than petit women. It is a really cute pattern. The sleeveless sweater is done with 2 panel, front and back in stocking st. Then a moss stitch panel at each side to join it. This should be easy to adjust to larger sizes.
The cardigan is knit in Moss stitch from side to side, so it shouldn't be too hard to make bigger either.