Luckily I don't have Lucas parts in my rig. Mine was built when BMW owned Land Rover. Unfortunately the electronic HVAC is still filled with plenty of gremlins
I got the part in and everything seems to work. I'm not sure about buying a spare. Obviously when it failed it made life difficult but I think I will have to check online and see how big of a problem it really is. That being said next time I'm at a junk yard I'm going to see what they charge for one. I'm also going to tear apart the old one and see if in the future a field repair may be done. I'll let you know on that.