Dahlquist DQ-10 : Latest driver substitutes??

I just bought a pair of DQ-10s that need a bit of help. (specifically, a tweeter) I have looked up various threads on the internet about who has substitute drivers, but some of the answers are dated and there is much debate! And, there are plenty of negative comments about a couple of the "well known" vendors. These must be early production because the speakers are not handed, but one serial number apart. Came with small legs, too that make them look like a Quad.

So, should I just look for one original tweeter on auction sites or is there any one I can trust?

I have never owned a pair but I do like the sound of my one fully functional speaker, after I fixed the loose masonite on the woofer. The previous owner had them refoamed years ago and the foam was installed "bump up" instead of down. The woofers are stamped DAHLQUIST on the back.

Any comments from owners welcome. Thanks!

p.s. Are tweaks worth it? One guy claimed that he can turn them into "Class A" speakers.