If you decide to go with the D16z6 I have one that was being built for ITA. I have lots of good parts for it. Canton oil pan, Hytech header, ARP rod bolts. All the machine work is almost done. PM me if you are interested. With just a few changes it could be a good start to an FP engine. Just add 12 to 1 pistons, better valve springs, which I have and a legal cam.
Blake Meredith