[Central-Electronics] VFO for 10B and 20A

[David]

I'm now a proud owner of a 20A.  Been reading about BC-457/8, CE 458, and 
Lakeshore units.
Are these pretty much the most practical options for CE 10/20 transmitters, 
or have others successfully used other commerical vintage VFO's?  (I did see 
the thread about the DDS, too...).

I sure would hate to butcher up a BC-458 just out of principle since the CE 
458 and Lakeshore VFOs are rather scarce (anyone have one for sale?).

thanks
-dave
W5OC