I have been looking to get a 3 point attachment for the front loader quick attach. Then it would be simple to build a tower wide and deep enough to handle your biggest and heaviest attachment for the bottom. Then leaving room,add a floor for the next attachment and keep going up one attachment at a time. You could get 2 attachments on the same level by placing them from the front and back. Put a cheap roof on it and a tarp or doors to conceal both open sides. You could go up 8 feet depending on how high your loader arms will reach. All your attachments would be in one place,under roof,with out taking up a lot of space.