I found a great deal on a saddle tank right down the road from me, $40 with brackets and everything else.
I haven't heard of anyone building a 366 until now. The 427 on the other hand can be made into a beast but I have no interest in building my motor at all. Cost wise it makes more sense to do a motor swap. I've priced out a stroker kit and a rough price on the tip end, it makes no sense for what I intend to use the truck for.