In addition to the Englehardts another bass you might want to check out it is the "new old stock" W. Eberle laminate from
www.bassesonline.com (ideal music). It has a thicker neck than the Englehardts I've played and worked better for me although that's very much a personal preference and you will find many opinions on this site about Kay/Englehardt necks and plywood basses in general
The "basic setup" by ideal was playable, but you also have the option of purchasing one not set up at all and having a local luthier set it up the way you want it. I had an ideal put an adjustable bridge on it, then when i got it filed down the nut slots a little on the E and A string to lower the action at the nut. Someday i'll spring for a more refined setup, but it plays well enough now it can wait until i need new strings.
I won't go into the whole story here about why these basses are a good value. It is on the bassesonline site and you can find many related threads here on talkbass by searching for Eberle. There is no substitute for playing upright basses to find out what sound you like and how they feel, but imho the Eberle is a solid instrument and I like the sound of it for the old-time/celtic/bluegrass music I play and imagine it would also work well with a pickup for rockabilly.
- Jeff