Thats repairable, the best way is to cut the whole section out and repair it on the bench then weld it back in place. The other way is to try and fix it on the car, much more difficult. On the bench you can pick out the spot welds without destroying the metal and use it as a template to make your repair section. VERY IMPORTANT, before you cut the section out of the pillar make sure you have at least two braces welded to prevent the roof sagging into the corner, one can be welded a few inches away from the pillar vertically across the windscreen and then another in the same fashion in the door opening.
Hope this helps some.

Thanks Jp I'm in Clyde Vic
And I rather find a pillar to change but it I can't guess I'll have to give it a crack and fix it !!!

Thanks troppo hope it doesn't come down to that but it's looking more likely some one plz find me a pillars !!!! :)

I did a rough measure across this bit on the 2 and 4 doors

4-door ~42mm
2-door ~24mm
So looks like the pillars are different.
 
Was going to say I have a roof I cut off a 4-door that has most of the a-pillar left on it. Could cut them off for you. But going on the above measurements I'm not sure they'll be much goo to you.

Thanks bud think that solves it , it's almost halt the size no good :( what area u from hako73? If only they made this section panel

I'm near Nowra on the NSW south coast.