It appears the Mooney factory is for sale for $15,000,000.
See this link for the listing: https://www.bizquest.com/business-for-sale/legendary-aircraft-manufacturer/BW1902593/?_cv_index=3&_cv_name=searchagent&_cv_scope=2&_cv_value=csa&u_api=1
The listing includes a "Mooney overview" presentation that provides just a bit of information about the possible gross weight increase, building all carbon Ovations and Acclaims, as well as future development of a 300 knot