Hi Nick,
The corrosion points may or may not be a problem, it all depends on how bad they were in the first place and how well they have been repaired. If they have just been patched for the MOT, which is most likely in my opinion, then you problably need to be realistic and expect that the car will need further attention in the next few years, ideally done properly, not just some more patches!
It's impossible to say any more than that without seeing the car, ideally up on a ramp so a proper assesment can be made of its structural condition.
If you are looking for a car to restore to as new I think it is a good base to start from as it was a very tidy car when owned by Richard who was a moderator on here and still looks to be very good. Richard knew Pandas inside out and looked after it very well.