I have ordered similarity maps for a couple of samples, including that one, and the interesting R1a from ~200-300 AD from Ph2ter.
He will be on it as soon as g25 coordinates are published for the samples.
Think it will paint a straight forward picture which was expected, but lacking before the samples from this paper.
Awesome. He's Z638 too right? This one will be without a doubt the closest to Proto-Albanians.
My guess would be he plots just south of modern Albanians. So take away 5-10% Gothic and 15-20% Slavic from modern Albanians and you'll get this guy.