Where in the US to send my Linn Sondek LP12.

I thought I read somewhere that the best Linn Sondek LP12 turntable specialist was in Colorado somewhere. My nearest Linn dealer is in Ann Arbor Michigan. I live in SW Ohio. My query is - would it be better for me to personally drop off my turntable to Overture Audio in Ann Arbor or would it be a better plan to pay the shipping to this Linn  dealer in Colorado.

I'm leaning toward driving up I-75 to Ann Arbor and hand deliver my vintage LP12 with Ittok arm and K9 cartridge for a consultation on a power supply upgrade that I can afford. I have heard that the Lingo 4 is a meaningful upgrade. I'm not really wanting to play that crazy upgrade path game that Linn does where they steer you into an endless escalation of tweaks and upgrades.

But if anybody can vouch for a good Linn turntable tuner who is honest and who will work with an ordinary customer of limited means, I would be most appreciative.