SawTroll: I found the Dolmar on Ebay. Not many there compared to the other makes, and some only ship inside the US. You are right, the PS-5100S is a US model only. From what I have found, only carb. details, the black top and the coil with + 1K differs from the PS-5000 sold here. Perhaps other details as well.
TDunk: The only Stihl I have is a MS 260, from 2006. I have considered a MS 660 for my Logosol M7 sawmill, but the electrical motor makes less noice! From what I have heard, the Stihl 361 sounds interesting. Perhaps this could be my next saw? That is the best buy for this saw?
My other saws are mainly Husqvarna: 372XP, 455 Farmer, 346XP, 242G, 42 Special. Plus a Dolmar PS-5100S this spring. I also have two rather old Jobu saws (Senior and Junior). Both in running order.