Hey Steve,
I would be happy to have a look at it for you and advise you of any rust that is easily visable, but if it is hiding behind bog, it may be a hard call. Even though it's just around the corner, I have the kids for the next few nights, out the following few and then get the kids back again for the weekend. I could do it on the weekend but will have to take the kids with me which shouldn't be too much of a problem if they aren't feral. I see under the for sale section what appears to be another clean mk1 has come up and they would both be within 10kms of each other.
Cheers
Tim