Nah , don't do it . It'll never look right.
Careful, if opinions are not what he likes, he may not post on the thread 
Have to agree though, its never going to look right. Part of the issue is the glass, there is no body panels to shape/cut down, its going to have to be "added".
Much better getting a Holden version:

Careful what you write! As there is an opinion and there is abuse!
And I am druling over that Holden, Shame they are not readily available over here.
And I think I would have to look into it further about the actual design of a 4 door pick up.
I think that I could use the estate bootlid still the same as the single cab conversion.
Can anyone on here do a proper photo shop for me of my idea please?
Also I would still put a spoiler on the roof

Even if I end up doing the single cab conversion I will be fitting a spoiler as I am VERY VERY INTO MODIFIED CARS and Customizing vehicles as I like my motors to be individual to my tastes.

I am off to eat my Curry and Watch a film and I am going to have a serious think about the design of the truck as I have decided I am going ahead and doing a conversion but not 100% if it will be on the Omega B or Omega C or as most of OOF prefer to call them Omega Pre-Facelift and Omega Facelft.
I am more keen on the Facelift conversion tho. And am not worried about it being road worthy at first as it will trailered to shows at first unless it is going to be easy to get it roadworthy straight away.
I want the truck to be Black, Blue or Silver.