Yes. I faced this situation recently. I didn't think any of the conventional loosening approaches would be at all effective. As it was it took a cut-off wheel on a die grinder and more than just one slot to get it to move.
Maybe this page will help - https://crawlsbackward.blogspot.com/2018/05/quill-and-spindle-removal-craftsman.html
Or this - https://www.ebay.com/itm/267451512423
It looks to me like you have the sleeve but it should go between the two bearings instead of at the top.
Ask what refrigerant the proposed system will use. R410 is being phased out. Some people say the future availability isn't concerning, others say otherwise.
I must be missing something. It's obvious the codes and associated database would be great for drilling down into data, but how do the codes help you drill up? From here it looks like you would search the database for "tire inflator" and it would tell you where it is, with QR code AND...
I've talked to several homeowners companies in the last two years, and it is almost universal that they ask about the AC, just as they do the roof. I've even had it come up with respect to plumbing and wiring, though not as often.
They could be figuring reduced losses due to depreciation, if...
This may be the single biggest problem. If these can't be expanded I would think a supplemental upstairs unit of some sort would be almost unavoidable.
Look for the guy that talks technical on his website - like "air quality", "manual J", "blower door test", "air sealing", etc. You don't want the company with ten trucks, also does plumbing and electrical, flashy website, offers financing, etc.