Too many people on "a limited budget" want to buy Z's, not a good combination. If you buy a Z for 4k , you're probably already starting off on the wrong foot. Take time and save for a good one. The TT swap is not anything you're going to do soon after. It's pricey especially when you get the mod bug. Just to get an idea, I bought my NA 4 years ago for 9k. I have several thousand more than that into my swap.