I've heard of guys rotating the 9.5 to HP position.  I don't know what they did to accommodate the oiling issue.  The 80 rear 9.5 is nearly identical to all the other Cruiser 9.5's with the exception of another oiling port in the housing and more webbing on the third.  My front widened 60 has a rear 80 chunk with an ARB carrier.   You might be surprised that what Brian can build you a Diamond housing for to exactly what your dreaming of.   Skip a mortgage payment.....I'm sure the bank wont mind.....

how could you just rotate it to the hp position?  you would have to flip the whole axle over in order to do that, which would then make it a driver side drop.  Unless they re-configured the bolt pattern of the third so they could actually mount it upside down in the housing, but then it would be rotating the wrong way when you try to go forward! doesnt seem like it would be possible to me. 

Maybe you should refrain from jumping Rice Cake in the future, ha ha