looking for intake carb / manifold recommendations for 318 1973 La block

Those things are nowhere near stock looking and for nearly $300 I would make my own. Seems like you or your buddy(the braiser) are handy. It ain't hard, you already have the 2 bl stuff. Theres a thread here on how to convert from 2-4bl.
It looks like My kickdown is all linkage and not a cable is there an extension rod available?