I don't find your line of thinking coherent "Building upon," what existed in the 20th century socialist states would require emulating many components of that political structure. I don't think there is much worth in emulating aspects of a society that centralized power into a class of bourgeois state-beuracrats.

What does it even mean that "they got further than anyone else." If we are judging economic formations by their ability to last a long time, then you should become a capitalist. Simply being able to exist for a couple of decades under a single party dictatorship before collapsing into capitalism (but not before engendering the deaths of millions through gross resource mismanagement ie the Great Leap Forward or the Holodomar) just doesn't seem like a model worth returning too in any capacity.