I have a TwinStar that I bought used (and no! I don't want to part with it) and really enjoy. It was an ARF, and has the shelf-paper covering, and some plastic pieces, but despite those it flies very nicely. I have Tower .40's on mine.

If you want to build a kit, there are a couple other options. One from NE-Aero, http://www.ne-aero.com/ called the Twin-Air. By all reports a nice flying plane, for a builder with a bit of experience.

However, if you want a plane with very similar characteristics, like the sticky landings and the smooth aerobatics, I can recommend the Contender. It's a great kit, and flies a lot like the TwinStar, in my opinion. Only one engine, though.

Good luck,
Dave Olson