If I go ahead with this M59 I'll contact Laurin directly and see what my options are for adding A/C.
Kubota (M-59) | Laurin inc | Cabines, canopes et compacteurs pour tracteur et camion
If you click on the "Download this flyer" in the upper right hand corner it says "Optional eclipse roof, required with air conditioning"
I do think if you found a different A/C supplier you could keep the original roof though.
Does the dealer your looking at the M59 at have it listed on the internet, just so we can take a look?:thumbsup: