Have similar story, SV6 sportswagon, Car was Ordered Mid - Late Jan 11 for delivery late feb / early March (Due to Options), then was told wont be built till 10th March for delivery Late March / early April, Just waiting to find out when it will arrive now.
Hope all goes well with your pick up. Might have to take a impartial person when mines ready.
I ordered a VU SS 2 ute and it took 5 months. Was told when i ordered it that there was a 3 month wait. So was happy at that point as i had already heard of lengthy waits for them. Then apparently a supply problem at the time of the T56 gearboxes and then the SS FIFTY limited edition was released and pushed all previous orders back another month while they were built. SO almost 5 months to the day,i finally picked it up. No accessories ordered,just a straight out of the factory car. So i feel for the OP and know how he feels