Well Gti, It would seem that the standards are slipping on this forum. I dont think there is any need for abuse or foul language here, but it would seem that even an enthusiasts forum cannot escape the gradual demise of society.
Personally I would have valued it about the £1500 mark. The Lpg will add little to value, but lets face it I expect you didnt buy the car with a mind for making a profit, like me you bought it because you wanted one and if your happy with what you paid for it then all is good. There will always be cheaper ones once you have handed over the money, and on the flip side, there will always be more expensive one...