Sew Old - how far back was that post by Yankeegirl, She may not still be "active" here.
You mention being interested in a "Queen" machine, but that is going to be a Badged Name, so you may find it used by different Mfg. However I think the only one that is a fiddle base is made (most likely) by White.
this is another White made machine - one of the first non-Singers I bought. Still one of my favorites!