Originally Posted by
Positron400
Quick update - My LBS had a 36mm flat wrench and loosened the drive side cup in like 2 seconds

. Removed the cup and gave the frame a thorough clean and degrease. Not really much rust buildup except for some in the BB shell. Some WD40 in there and in the steerer/seat tube and drying it overnight. Next up - wax and shine! No pictures at this point as there is no discernible difference to the one I posted

Great to hear the LBS was up to the task as they should be, sounds like it was a normal job.
We often discuss this here, at length, ad nauseum, many, many schools of thought, albeit some misguided.
These can often be a challenge, if this one came off with just a wrench it was not and may have not been tight enough.
Keep in mind that if they are stuck or very tight as they should be and often are, the LBS may not be up to the task, this can go south very fast, if they attempt and fail it can get desperate as rounded off flats can be very hard to overcome.
They need to come out on the first try when they are really stuck, seized, etc. it usually takes far more than a wrench.
All that said, welcome aboard, glad you found us, you're in the right place. We love these.