Thanks for the advice chaps, has helped put my mind at ease a little especially with regard to the oil leaks and the springs. I'm pretty hopeless with spanners to be honest and had assumed it would be too complex but I could try and pick up a few tricks.. Luckily I'm only a few miles from Japex who have got it through the MOT by doing the brake pipes and headlamp adjustors, I'll find out the damage tomorrow but I spoke to them and it seemed pretty reasonable and they seem like good eggs. Armed with your advice I feel in a better position to discuss future work so many thanks! I think as I see it over the next few months to a year it will be in order: Exhaust, power steering leak, service and rocker gaskets, wheel refurb, battery, polish and side plastic trim, tyres, belts, suspension if it's desperate then do something with the scratch....
Oh whilst I'm here, what's that plastic thing I can pull out from under the passenger seat? It's got me baffled!