subframe
Canuck,
You don't have to support the tranny just put the bike on it's centre stand,apart from the 4 bolts you mentioned there is also a bolt that goes right through the top of the engine aswell and 2 more bolts one each side that are connected to the air box.
My tip would be is leave the 2 very front top bolts in but loose and remove the rear mudguard/exhaust/lights/shock/footrests.remove the 4 bolts that hold the battery tray in place.remove throttle bodies but dissconnect the fuel lines as they have the link pipes fixed in the front of the air box
then loosen the the relay box bolts,by leaving the 2 front bolts in you can lever the frame up to get the relay box out just let that hang down the side of the bike you don't need to unplug anything,next remove the air box,again by lifting up the frame as it has to come out backwards,then when your happy that everything that is attached or may foul it's removal has been removed you take out the 2 front bolts and pull the frame out backwards,so basically your not left with much intact after the frame has been taken off,sounds a lot of work but it's all very straight forward,hope this helps. Andy