The Braze Asteroids/Deluxe/Lunar Lander multi kit hasn't ever formally been released, so the kits that some people have (as he has sold a few) are technically prototypes. They generally work, but don't have all of the sounds implemented (due to the different ways Asteroids and AD generate their sounds). Also, most folks who have the kits aren't selling them.
In lieu of that, I have these boards available, which can allow you to play different ROM versions of each game (but not Asteroids and AD on the same board):