[DanEC]

From what I can tell the Mk IV FFR looks like a nice car. I like the body. I'm building an ERA because they build a street roadster version which I was seeking and the MkIV FFR was not out yet either. I actually was going to go with a Hurricane street model but they went out of business before I was ready to go. If your wanting to build an SC 427 model, then it would be hard to beat FFR. You might check on the Hurricane. They have started back up but I don't know just how much production they have going.

Unique is a super car too and may be cost competitive with a FFR if you decide you want IRS.

Of couse I'm kind of partial to ERA and I think they are definately worth the additional cost, but depending on what you're shooting for, it might not be to you.