I recently set about the same guidelines for a new CB. Here's what I bought just a few weeks ago:
I searched the web for "best cb" and some other similar searches. Uniden kept popping up as a good manufacturer, and model PC78LTW was common.
I then found the http://www.unidendirect.com/ website and saw a factory refurbished CB for a very good price. That's what I bought:
"LIKE-NEW" B-PC78LTW $ 54.99
The radio looks brand new and works like new. The box was a little worn looking, but who cares. I saved about $50 buying this way. It has most any control a CB needs, and includes a weather channel receiver, too.
IMHO (after 44 years as a ham, and 30 yrs around electronics industry), it's easy to pay more for a CB than it's worth. A legal CB will never have more than the low/legal output power, and most receivers are adequate. More money buys bells and whistles. Money can't buy more legal power (except for getting the best antenna available, and mounting and matching it properly).
As for antennas, a full quarter-wave 102" whip (the old fashion ones) mounted as centrally and high as practical, can't be beat by the smaller but less efficient 'loaded' whips.
U-1300L Unimog with 10' Alaskan camper, OM-366A turbo-Diesel, fast axles, overdrive, Werner 12k winch
Various other mogs for work and play.