See my post #7 above. The big bills included two new front struts, a new ABC pump, and a new SBC unit. It didn't make £4K...
Selling old cars is a long game if you can stomach it. You can put £10k into a car and whether you price it for £10k, £8k or £4k, the guy who buys it is probably going to be the same guy. I just sold a 1985 BMW 745i. That's the one with the 3.5 liter straight 6 with a factory turbo charger.
It's as rare as chicken lips and aside from the faded paint, it was a great car that needed nothing (even the a/c worked). It took about 5 months to sell. I was pretty sure that whoever saw the car and drove it would buy it, but I suspect that the guy who called me about it was the only guy on the planet who was prepared to make a serious inquiry at my no haggle asking price. 99% of other people would rather spend the same money on a 3-5 year old civic.