The market for these is very mixed. The high-performance models have rocketed in value, whereas the lower spec ones struggle. That said, don't let anybody tell you this car is a 'scrapper' and offer to take it off your hands FOC. It sounds like you've really looked after it and a good example is worth between £1500 and £2000. However, you will have to be patient and you'll probably have to deal with a lot of people trying their luck so hang in there.