The one complaint I've heard with the Triumph (in the add you posted) is the seat not being quite as deep as the other Macs. Some kids don't think its as comfortable. The Volo seat is even a little deeper. But I've never really checked that particular one out, so, just something to keep in mind when you go to look.
I'm not sure how much a new basket would cost, but check out this site
www.babye-store.com They have great deals on Maclarens and free shipping. They have the Triumph for as little as $94!
Oh, just saw your add-on for the Techno XT. Now that would be a sweet deal! It looks to be in good condition. I'd check that one out, the hood may be something you could fix yourself, you never know!