Absolutely take your time. However German Warwick’s can be had on the used market for 500 quid. I would never go for a Rockbass when MIG basses are out there for that price.
The “entry level” German made Streamer Standard is a great bass, I love mine as much as the more expensive models I have. Lower output, but fabulous tone. I would be all over one of those rather than a Chinese version all day long.
A lot of folk turn their noses up at that particular model, claiming it to be inferior, basic, low output. It was the forerunner to the Rockbass line, but MIG, and is a great little bass IMO.