If you want a Ford Racing Catalog engine, I think Scoggins-Dickey in Lubbock, TX has the best prices.
For me, I'd probably go Keith Craft, he's relatively close to me and I have several friends that have had both street and race engines done by him with no problems. But there is a poster here that has had some problems with his 331, I don't know the whole story there. There's always going to be someone that's not happy with something, it's all based on expectations. I heard about a non Ford crate engine on a non Ford forum that the guy installed, started it up and locked it up, he thought it was shipped with oil as the ad said it was complete. He was dragging the builder's name thru the dirt, but everyone saw thru his idiocy. I've heard other stories where a builder accidently put head gaskets on backwards and the buyer drug his name thru the dirt even though the engine wasn't hurt and the builder sent new head gaskets next day. Made me wonder if the buyer ever did anything wrong, like put engine oil in his car without first reinstalling the drain plug (I have yet to do this one, knock on simulated woodgrain top on my drop leg particle board table top I have for a desk).
I'd suggest someone nearer to you, Livernois or Survival Motorsports.