Spare tire and rear bunk to receiver clearance

Question #1 - Where do TM's carry a spare tire?

Question #2 - What is the vertical clearance (for transporting a couple of bikes) in inches from the top of the 2" bumper receiver to the bottom of the extended rear bunk/bed?

We are getting close to making an offer on a used TM and will be transporting our 2 bikes in a rear bumper receiver rack. I'm curious if the bikes could remain on the rack when the TM is raised and lowered. Would the bed support brackets be able to swing into their opened position without having to remove the bikes? I sort of doubt it, but I won't know until I can try it I guess. And is there enough height under the rear bed when extended to leave the bikes in place on their rack? The vertical support that hold the bikes erect can be leaned a bit with the bikes in place, but the hoops that the tires rest in remains horizontal (don't tilt)