This past year I purchased a fairly top tier LP12. It has a foot in the door of a Klimax level deck, essentially an Akurate with a Radikal motor. I also had custom plinth built for it. I found myself in similar situation where my dealer was not close but not too far, in my case Atlanta.
- Don't ship. If you choose to visit a dealer just make it an excursion and enjoy the process.
- Talk to your potential dealers and see if they mind you hanging out while they do the work of the install of the new motor and power supply. Shoot video with your phone. Learn the insides of the deck and what each of the parts does.
- While you are there go ahead and do a suspension tune up if it is needed.
- All new LP12s will be corner braced as is mine. Not required but may be something to consider if you want to get a new plinth from Linn or a more exotic aftermarket one. Many good options. Not off the charts expensive until you opt for exotic woods.
I believe your dealer in Ann Arbor Michigan has a very knowledgeable tech or participates in some of the Linn specific forums. Also, I can vouch for dealer in Atlanta. There are also options in Maryland and DC. The take home is work with a dealer - at least initially. When you transport the finished deck you will remove the outer platter, and raise the inner platter. It is also important to keep the suspense and arm board from swinging around while driving. Also remove the counter balance on the tone arm.
You can purchase the tools to work on your LP12 as well and it might be a good idea. Also take a look at the following setup guides from a a very well respected Linn dealer in England. These guides are a good opportunity for learning and worth the read for any LP12 owner. Required reading if you want to do the work yourself. The guide has three volumes.
https://www.cymbiosis.com/downloads/
I agree at the end of the day it is just a turntable but it still needs to be done correctly to get the most performance and enjoyment out of it. Take the time and effort to do it right, you will be glad you did.
And while the LP12 can be expensive I have found the investment I have made into it worth while and it has far exceeded my expectations.