I've got to be honest mate and say that I'd "retire" the car for a while. Keep it, but take it off the road and buy something else to use as a run around for say 12 months. Get yourself one of those group 1 insurance cars and drive that for a year. Otherwise you'll never be on top of the Pulsar as if you're using it daily other things will inevitably go wrong. I had mine for two years (only sold because I got made redundant) and during that time it was hard for me to afford to run it sometimes even being paid decent money with cheaper insurance. I took mine off the road from Oct 2010 till March 2011 and saved money. With this I was able to get the car sorted properly so that it was reliable, and ticked all the boxes I wanted.
Forget about your mates, if you keep the car off the road, you can sort everything out once you've got a bit saved up. Do it all in one go and you'll be laughing (at least until something else breaks!). If you don't do this, I'd recommend selling. If you keep on driving it without sorting everything, then stuff will go wrong as quickly or quicker than you can fix it.