I'm not sure where I got the surround from, it's been on a while. I think it was from eBay as were the chrome rings.
Front tyres were replaced about 3k miles ago, back will probably need replacing at some point this year although they are still legal.
I'll try get some pictures of the wheels today at some point although they're not too bad, just the same as what happens on most zeds with the alloys showing signs off bubbling.