Well I ordered up the Spyder Accessories top rack and ordered the Givi Monokey hardware set. I'll just drill and tap the latches directly to the rack. Here's what it should look like when I get the mounting hardware attached.
The only (minor) issues I have with the Spyder accessories rack is that the edges are a bit sharper then I would like. I can see my roc straps getting cut through if Im not careful in my tie downs. I'll probably wrap something around the mounts to cover the edges. My Trekker top box has been on many trips, on many bikes with me so Im glad to have it ready for the next ride.