Need at least 2 desperately. Can't find them locally in Melb. Anyone has some or know where I can get them from?
Raf

It has been a while since I had a set of 40P11's,
but I recall parts from some VW solex carbs were interchangable.
36'er carbs(28pci) had some parts that fit so perhaps start your search at your local VW used parts place.

would these carbs be a viable alternative to webers?

Yes they are. Although the bolt pattern is slightly different but the manifolds can be redrilled to accept them. They came on late 356 engines as well as 912s