Brad,
The FFR still uses the donor concept but that doesn't mean you have to use used parts. You can do a non-donor build. There are many manufactures represented here so do your homework and decide which works best for you. For more details on FFR you should visit
www.ffcobra.com which is a dedicated FFR customer site.
Like I said there are many options so figure out how much you want to build vs. spend and weigh your options.