Lovely.
Have been to the UK many times, and have only ever seen one 20 series while I've been there.
A decent wash and I think you be pleasantly surprised.
Parts are getting thin in Australia (which is where the vast majority of us are from...) particularly for 25's.
You should be able to get better guards than what you have fairly easily, but the doors are going to be an issue, as they're different from KE20, and rare.
See if you can fix the boot, too, as they're a bit thin on the ground too.
Those bumbers are incredibly straight for a car that age. :)