aquario just posted up a new offering from Danfoss: the digital compressor package. The components of this "roll your own" package are very similar to what you have.
check it out:
http://www.ra.danfoss.com/TechnicalI....019.A2.22.pdf
The diagram on page 2 is almost what you have in your heat pump. Just subtract the eev and check valve from the indoor unit, and substitute the danfoss controls for generic "midea" parts. This "house that Jack built" approach is spreading across the world as we know it.