Kaeser A36 Compressor airend rebuild

We needed to rebuild our back-up Kaeser A36 Compressor airend which had seized from non use.   Kaeser does not provide an exploded parts drawing or parts list for this rebuild.  
They do not even return emails or calls. 

To rebuild the air end we sourced these bearings.  

ID 44MM OD 72mm ------------Part NU2207EXLVP2 qty 1
ID 44MM OD 72MM ------------Part 1206TS/AMA1207 qty 1
ID 37MM OD 62MM ------------Part 1206TS/AMA1206 qty 1
ID 30MM OD 42MM x 17MM -Part RNS4905 qty 1
ID 30MM x 72MM x19MM-----Part bearing ID 30MM x 72MM x19MM qty 1
ID 25MM x 62MM x17MM-----Part bearing ID 25MM x 62MM x17MM qty1

Our supplier paid $206 
We paid $400
Rrebuilt airend over $6K + freight

This is put out there to help small businesses because the big ones don't seem to want to.