Paul Wheaton has a great page on seasoning cast iron. I'll post it on another thread. (I guess I can't post the link, it won't copy/paste on the new thread)
Just a suggestion, when you're dealing with remodel, you might want to consider getting some kind of vent in that kitchen. Small rooms can really be humid when you're cooking and doing dishes - not so good for the walls. Is that possibly a reason why your cast iron isn't keeping the seasoning on?
When I can get hubs to do the pot rack, I'll post a pic here. I still love the window frame idea. It'd work for colanders, ladles, baskets, that kind of stuff, but I'm trying to do more with less stuff. HA!!