Have you sleeved the cylinder bores yet, or are you going to? ...Sonny Rossi...He probably knows more about Vega engines and where to find parts for them than anyone else I can think of, so you might check with him.
I think we've already proven, it's just to obscure. I'm gonna bail on that engine. Leave it for low buck t-bucket build or something.
I don't mind building a few things, but I don't want to build all of it. Off the shelf solutions like a basic intake are nice. And if nobody's making parts... well, that should be a good indicator of
"avoid"... ...lol...