This is my 1st post, so forgive me if I could not find a previous thread regarding ladder options. OK, Am I crazy..? I think that all those off-road Synchrony Vanagons and larger off road Chev/Ford vans have a great idea with the after market ladders that you see bolted to the side rear area. Has anybody done this with the Expedition? For one, I can't hardly wash the roof, and for two.. I would love to better access a roof rack, etc. Thoughts..links?