Dear Sir Hello. 
We are an authorized distributor and service provider of  
Mercedes Benz vehicles in Bosnia 
Secondary business of our company is dealing with gas powered  
engines We are already doing conversions on gasoline vehicles 
into LPG Now we want to start with conversion from 
diesel to LPG or Compressed natural gas Do you have those conversion 
kits for diesel vehicles. Dual fuel system(combination of diesel and 
LPG in vehicles) or dedicated conversion(after conversion engine can 
just run on LPG ). OR compressed natural gas if you have, 
Please send us if it is possible some performance, reference picture, 
conversion kits regarding this. 
Hope to get some answer from you 
With best regards