VLBI arrays [1] are networks of radio telescopes that combine data from multiple instruments spread out over a continent or the whole planet. A network like this emulates a continent-size or a planet-size radio telescope and produces radioastronomy's highest resolution images.
The most sensitive VLBI array is the European VLBI network [2] which spans the sort of scales you have in mind.
A VLBI array can also incorporate space-based nodes, see e.g. [3].
[1] https://en.wikipedia.org/wiki/Very-long-baseline_interferome...
Really, you just need manufacturing/contractors in many places. This part built in Pennsylvania, that one in Michigan.