Welcome to APUG.
Impossible has just come out with a new version of their Color Shade film, called Color Protection, that they say is crisp and has much improved colors. It's not as sensitive to light when ejected. It still takes about 30 minutes to fully develop. I bought some, but haven't tried it yet.
Impossible film is expensive, by any reckoning. I believe you are right in considering a Land camera that can take Fuji film. Unfortunately, I don't have any experience with any of them and can't recommend one, but I wanted to mention the new Impossible film, even though it might not be a useful option at the current price.