This is good news as I can now share this content with those that visit my blog.
As previously mentioned only one standard skylight was required to emulate the overall "fill light"(i.e. blue).
I hope you have found this post useful.
New Book: 3D Photorealistic Rendering: Interiors & Exteriors with V-Ray and 3ds Max
More tips and Tricks:
Tips & tricks for architectural Visualisation: Part 1
Essential tips & tricks for VRay & mental ray
Creating Customised IES lights
Creating a velvet/suede material