I'm looking to convert my NA over the next month or so.
I'm trying to get it all in for about £275 by shopping around for second hand bits, then fitting myself, then getting it inspected and certified. It's not necessarily possible on this budget but I am hopeful.
I spend 2 hours in the car each day and it does my head in that I have to leave the Coupe at home because it's too expensive to run.
I'm going for multipoint so I won't need to mess with the air intake and sap the power on petrol.
If it kills the engine an NA engine will cost £150 to replace but my experience has been that LPG makes engines last a lot longer.
When I tried to convert my old 20v turbo nobody would touch it but that was before Multipoint systems really got a hold.