If your heart is really set on this system, here are a couple of Ideas for you to work on.........
1. Instead of buying and installing one piece at a time, whenever you have the cash for that one piece, just throw that cash into the cookie jar and leave it there. Do that every time you want to buy a piece, and it will not take too long and you will then have the cash to pay for the complete setup. This is probably the most cost effective way of doing it.
2. The other way would be to go ahead and buy your system one piece at a time, but don't install anything until you have all the components in your possession. This would probably be the least cost effective way to do your lift.
Building a lifted badazz rig is expensive to do it right. Sorry, but one has to pay to play. And I know, we come from a society that is used to instant gratification, but there are ways to do things that will actually be more satisfying in the end. Our government needs to work on this!!!!!!!