1) Stone walls, we would want them; but RTW stone walls don't suffice and our own haven't yet been implemented. - We are in dire need of people who can do such things, it seems.
2) Macedonian Coifs. Hmm, I wouldn't know about that one. Providing pictures how they should look like would be great.
3) Hellenic names. Well, there are a few things which amount to hellenic names:
Proper Getai names that we know of are scarce;
The Getai were pretty hellenised compared to most of Thracian / Dacian world. Thracians have been in contact with the Hellenic world for centuries, and both cultures have been influenced by the other. - Many Thracians would serve as mercenaries; Thracians got lots of their equipment by taking it from other peoples (Skythes and Hellenes).