I think I saw the sleeves on real OEM.
Oops sadly just a mention in the repair manual didn't have the part #.
Pull them out chuck into a drill and spin against a file. Or if they are symmetrical flip them around and put the damaged part into the block. (or likely a bit of both)
Sadly the geometry says that the back bolt.holds all the pressure of the belt you really need to have it in there however: nobody said the head has to be buried!
Get a longer bolt, get a piece of tubing that just fits over the bolt and cut it just right until the bolt head is visible out the side of the compressor and you can get a 12-side box end wrench on it (or do the classic flip flop with an open end wrench).