Mid-first century BCE Yazigian prerequisites

Torsten,
Check your Przeworsk materials for the period 75-50 BCE.
(1) Are there inhumation burials?
(2) If so, are the graves:

(a) barrow graves (kurgans)?
(b) double-pit graves? I.e. A rectangular (not round or oval) pit on whose floor a secondary narrow pit has been dug for the skeleton, and closed with a wooden cover of some type?
(c) is the head of the skeleton pointing towards the south?

Re (a): "Metanastae" Yazigians abandoned barrow burials shortly before they moved to Hungary, while they were still on the lower Danube. The other Yazigians retained them.
Re (b): Some Yazigians were buried in simple pits (single) of rectangular shape.
Re (c): A Yazigian characteristic through the 4th c. CE.

There are a number of other characteristics but the above are defining ones.