Rust the only real issue,cvh is tough as old boots but you'll be wanting to zetec it as it's apparently a very easy conversion for a few hundred £££.
Price wise like any old ford that's survived this long they command a premium,a grand only getting you a complete nail really unless the seller knows nothing.
I found them slow even back in the 90's but the handlings superb,interior basic but recaros sort that out and to me the stylings pretty spot on,perhaps some different wheels if that's your bag but id leave totally standard otherwise.
Good little cars,but no longer the cheap and cheerful Chavmobiles they were back when I was a boy!!!!