Hi everyone,
Thanks again for replies.
Upon sleeping on it, I'm starting to think about getting a few more quotes re: welding. The rust does actually look a lot worse in person than by the photos alone (and there's quite a few more spots than I took pics of) so will get a few more prices before making a decision as love the car!
In two minds about the VOSA situation - the car definitely shouldn't have passed (the garage I took it to do MOTs and the guy said he wouldn't ever have passed the car). See, the problem is - if I get it VOSA checked I'll most likely have the MOT certificate taken away, dilemma!

In terms of replacing the rear axle bushes, what sort of cost am I looking at to get a garage to do this? Also, (sorry not too technically minded with cars), the boots covering the UJ in between the front wheels has also come loose - again, any ideas on cost? Hoping that it's not too cacked up so it can just be regreased.
Cheers
Chris