Yeah I'm surprised to hear about visible body rust on an E9x. Plenty of clapped ones around here with blown shocks, general disarray, and leaks, but I don't think I've personally ever seen one with fender/door/hatch/trunk rust. Any chance you're willing to share some photos of it?
How about a manual Clubman S? They're pretty reliable, a BIT cooler than the Countryman, and decently reliable/averse to rust.