I received the Engineering bill from Mooney a few days ago, it was $1034 or within a $1 or two, for the engineering document issued through Mooney and approved by the FAA. It is very similar to Grant's pics plus there is a change in a floor support brace from Mooney and the bill for that part was about $75. So as what was mentioned before the price may very depending on what you can purchase the actuator and associated parts for. I would also recommend sending your "new" actuator off to LASAR and have it serviced by them if you choose to do this. The price is $450 for them to inspect it and service it. If it needs other things then you would have to figure that out with them. My A&P and I came to the decision to do this while there was no answer to the gear problem, maybe the solution is good, we'll see. I hope it is for those who chose that route. I like the fact that my gear actuator is very solid and doesn't have issues with finding parts or have to get it inspected every 200 hours incurring more time and money for inspections. If you decide to go the route I did contact support@mooney.com. I'm glad to let you know that the folks at Mooney are working to help the Mooney owners solve some of the issues we have with our airplanes. I'm grateful for Frank and Kevin's support to get this accomplished for my needs and those of our community.
Good Luck