I just got my Kioti DK35 HST. In cool weather it will take at least 10 seconds to start as the glow plugs operate for 9 seconds. It starts instantly with no noticable smoke. Although it won't win the "starting olympics" it is fine for my needs.
It is a vast improvement over the 30 year old Kubota
L275 which at 33 degrees F would take 60 seconds of glow plug, attempt to start with some firing, 30 seconds more glow, attempt, 30 seconds glow, start on 2.5 cylinders with lots of white smoke, and then finally able to warm up. Starting it was an art. The DK35 is amazing in comparision. I'm interested to see what it will be like at the farily common -15F next winter.
As for manufacturing all parts, I wonder if CC makes their own bearings, hydraulic cylinders, bolts, etc. I hope not. I think it is better to build the core and integrate out-sourced components with strict quality control.
This is what happens in the computer industry. Hewlett Packard, Dell, IBM, and others don't make most of the components. I would hate to see what would happen if they designed their own CPU's, video chips, etc. But they do engineer the main boards and integrate the systems to their own needs. Mission-critical systems such as file servers perform slower than their consumer-oriented gaming machines, but the file servers are more stable and have better quality components.
Although a disk drive may be branded as Hewlett Packard or IBM they are likely manufactured by Seagate, Western Digital, etc.. The same model drives are used in mission-critical and consumer machines but with an important difference. The mission-critical drives come from batches tested to meet closer tolerances. If they don't meet those tolerances they become consumer drives. Thus the much higher price for "business class" components.
I wonder if the compact tractor manufacturing is much different. That is, a good manufacturer will design a machine to operate with certain characteristics, efficiency, and longevity; and maintain consistent quality control to guarantee those qualities.