Mashaallah she looks very nice! As for the price, I was looking at them the other day, and I had the wind knocked out of me (to put it nicely). Ours was taken care of by Worldwide in Pindi and then Islamabad all the way upto around '95 when the workshop manager Mazhar left. After that, it was a selected few mechanics that took care of it, until I became good enough to lay my hands on it.
As for the GDI tech. It was designed to reduce consumption by charge stratification - rich pockets of fuel burnt in an otherwise lean mixture. Here's a link that might explain a bit:
In plain English? Going for GDI on the premise that you'll greatly reduce fuel consumption will leave you disappointed.