Well I haven't updated on this forum for a while, so I will bring you all up to speed. I might it sound like a $hitload of work has happened but it hasn't really.
I mentioned I was taking the car away to have the fuel tank hole cut bigger. I have done that and the car is back home again, here are some pictures of the work.

I made a carboard dummy of the tank and sat it in place, approximately where it is going to sit. It sits up slightly in the boot, which will allow me to fabricate a false floor, which will clear the electric fuel pump and filter, which are going to be mounted in the spare wheel well. The well on the opposite side will contain a little tool kit, and I'm going to make little hatch lids to go over them. A couple of shots of my mock up.

My boot will look somehing like this, though no subs, the battery and possibly the brake booster, depending on what I decide to do for that, will be mounted behind the panel, hidden from view. My engineer offered a suggestion for the booster, one from a Hiace van or similar, mounted behind the dash to keep it plumbed up front, and actuated with a bell crank. Another option would be a VH40 in the boot, actuated by vacuum.

Also, so changes to my front suspesnion plans to note.I was initially going to use the L300 front end, but I've decided against that for a number of reasons. The L300 unit is a large, and heavy front end and I'm concerned about how this will impact the handling of the car. I also feel it requires too much modification to fit, and will not be of a standard or look that I am satisfied with.
My plan now is to fit completely custom, tubular wishbones and adjustable coilovers. I am in contact with McDonald Bros. Racing in Australia in regards to the tubular wishbones they make, and I'm gethering some information from them at the moment. Here are a number of pictures of their wishbones.

The wishbones in an XY Falcon

The certifier/engineer came to give the car its first inspection this afternoon. This is required before any further work can progress. He was very impressed with what has been done so far, and my intentions for my front and rear suspension setup. I'm now in the process of selling some parts in order to get some funds so I can start buying things like these wishbones.