There are three different types of the vintage Beovox 3000;
Mk I Type 6220 two-way with a dome tweeter (as the Ebay listing)
Mk II Type 6210 three-way with two cone tweeters and a cone midrange (as yours)
Mk III Type 6238 three-way with only one cone tweeter and a dome tweeter acting as midrange
Yours, with the Isophon PSL 245 woofer, is actually fairly rare to see. I never saw a pair in Denmark.
The other types have Peerless woofers, Type 6220 being the one most often seen in Denmark.
Nice project.
Martin