Viewfinder accessories Q

[David Bean]

I need to find a magnifying right-angle viewfinder for ME Super and ZX-5. 
 The Refconverter-A seems to be rare and expensive.  I've heard that an 
Olympus Varimagni will fit over the Pentax eyepiece and work just fine. 
 Can someone confirm (or deny) this?
Thanks
DKB