I've built the 372, 660, 440, 360, 361, 260, 290/390, 250 and 181 complete (near complete on 440) from AM parts in the past, never did the 038 or 346.
Of the versions I have bought both in kit form and assembled from the same source, the saws I assembled myself were far and away better, though not much cheaper at the time.
Keep in mind most of the vendors in the far east will vigorously hide the truth in regards to where parts really come from.
They will claim to make parts themselves even when they have the manufacturers name of another company on them
Dealing with them through Ebay is great protection for buyers.
They don't sell complete kits or assembled saws though Ebay for legal reasons.
Anyone who assembles a saw from aftermarket parts should be meticulous in letting buyers and potential buyers know that it is not a genuine article.
Dave