100 year old home in New Orleans - Home Warranty Question

[William White]

Hey y'all, I know the home warranty question has been hashed out a thousand times and I have read a lot of the threads about. I think for most situations I would agree with a lot of y'all that as an investor and a landlord that a home warranty is probably not the route that I would go personally, however, I have what I feel like is a unique situation with this one property and wanted to get y'alls input on the potential value of a home warranty. 

I currently have a fourplex in uptown New Orleans. It is in pretty good shape for a 100 year old property and is doing pretty well. It however has 5 minisplit HVAC systems that are all 10-15 years old. Recently the condensers failed on two of the 5 units at the same time. I had two different HVAC companies quote me at ~$20,000 to replace both condensers and all 4 evaporators since they are aging systems and did not want to just replace the condensers (they also didn't work with the brand that I had and it seemed like they were unable to do the work to try and source new condensers). I eventually found somebody who was able to source and replace the condensers, but that still cost me ~$6,000. 

Given the age and cost associated with these minisplit systems, do y'all think it would be a good idea to get a home warranty for this specific property? Replacement of all 5 systems would be like $40k+. At $600/year for the warranty I figure these systems would have to last almost 70 years for this warranty to not pay for itself. *** I realize that the home warranty is going to try and repair these units forever and will resist replacing them, but at some point they would have to replace moist of the components since they cannot just be perpetually repaired ***

I was considering American Home Shield since they seem to accept appliances in any condition and without previous records of maintenance, etc...

Any thoughts would be greatly appreciated. Sorry to beat the Home warranty dead horse again. Thank you