Hi, sorry for the super late response 
As mentioned, I have done this a couple of times now and its a difficult but really rewarding hike. We started our hike at the top of Sir Lowry’s pass as we wanted to get the full experience of the old Boland Trail. It windes from Sir Lowry’s all the way toward Hansekop (Easy section) and then you walk up the Hanse kop tar until the hair pin where you take a right turn.The path is still very visible but not in the best condition so expect a difficult day of walking. We got caught in a really bad wind storm and ended up tenting for the night about 6km from Hanse Kop about half way to the Landroskop hut. It would be difficult to do the Sir Lowry section all the way to the huts in one day as its a pretty long section and you would need to start super early. I would break this up with a camp in between. Beware the wind, the South Easter funnels across this range and we almost got caught with our pants down up there. Freezing misty conditions with high winds in summer is common. There is a story that many years ago a group of hikers died up there as they got caught in poor weather. From Landroskop hut its a short walk up to the saddle and then from there is a pretty well marked route with lots of markings to the base of Somerset Sneeuberg. Plenty of scree fields along the way. We left our packs in one of these rocky sections below and summitted. Its an an amazing view up there of the Hottentots Holland basin. From the base of Somerset Sneeuberg it is a serious walk to Jonkershoek with a good hard section through an overgrown protea forest which will test mind and body alike. Once at the top of Jonkers there are 3 possible routes to descend. We chose Kurktrekker to get down as it was the fastest.
Lawrence