Dear Jeff,
I feel your pain.
My M.R. Enterprise connection broke after spinning the ship around only a few times. I found out why. It was just an audio jack connected to the female end with a little drop of hot glue holding it together!
If it's only the rod that is the issue then you can pick up a hollow steel rod at any Rona or Home Depot.
The wiring is a simple 2 wire power set up going into a quarter inch audio jack.
My experience however was more difficult.
I did some research and found pictures of the prototype and was able to remove the housing for the deflector dish very easily.
(click the pics to embiggen)
View attachment 612617
The bottom of the housing has a small lip to hook into the bottom slat of the secondary hull to hold it in position.
View attachment 612631
View attachment 612615
The sides and bottom slats are separate from the housing.
View attachment 612632
View attachment 612616
Originally I had it on a long mic stand
View attachment 612633
Then simply mounted it on a table top mic stand.
View attachment 612627
I hard wired the connection and ran it down a simple mic stand, which is infinitely better as the M.R stand takes up an entire table. Now that it is strongly hard wired I will never have to worry again about it coming loose.Then I simply re-attached the housing and the dish.
I also bought a remote from Radio Shack that will turn on anything that is plugged into it, so I can activate it from across the room.
Incidentally, while I was fixing it I was able to run the ship on a 9volt battery and I am toying with the idea of putting a small removable compartment on one of those squares underneath the secondary hull to make the ship completely portable.
(Clearly I have no intention of ever selling it so there is no pressure to keep it exactly how it was)
It still looks great! (used it to make this effects shot)
https://vimeo.com/10517641
Hope this helped you.
Spockboy