I don't know of anyone that has the space to do it at this point. My shop has a project car dismantled for painting, or I'd jump on this
and hook you up
You might want to give Heath @ Modular Madness a call. They build turbo Mustangs, wicked Lightnings and Cobras.... I would think a 3L swap would be cake.
I'm actually taking my car in for a final tune monday, I can fill him in on the details so he could give an accurate quote if you'd like.