@ Kauluwela: No it's not rust. There is a sticky rubberized coating around sheet metal layers, etc on the interior of the van. None of it is visible unless you start pulling panels. I am assuming that it is actually meant to prevent rust and corrosion. It looks like rust in the photo, but it's actually more yellowish.
@Batvan: I bought it on Ebay and had it shipped from the UK.
@Ddunaway: I'm not concerned with wheels sticking out ~6 or 8 inches. It's still better than dragging wind on the roof. I can slide the trays in on the rack, though. Still getting that dialed in.
@Hammerhome: The length of the trays is fine. It's the space between them that is somewhat difficult to work with. Might just have to pop off a pedal or something during transport. You could definitely swap out the trays if you wanted, but you don't have much space to work with in terms of widening the base. I haven't messed too much with adjusting it yet. It seems like if you hauled the same 2 bikes all of the time, you could probably dial it in just right. Most folks will need a step stool to reach the top tube of their bike where the strap is. I'm six feet tall and it would be a struggle if the top tube was just an inch higher.