I believe you can just create a bootable installer on an internal HDD from the Install OS X app. Then boot up the installer using chameleon (as a 3,1 Mac). Then proceed with the upgrade as usual.
Thanks Hennesie2000.
That's what I was thinking. I guess I can direct Chameleon to point to the Maverick Installer on boot up. Install Maverick upgrade on Mountain Lion. Then change back Chameleon to point to the new Mountain Lion disk upgraded that was upgraded to Maverick.
I've upgraded my system very easily form 10.8 to 10.8.5 several times with no issues. The Jabbawok system has work flawlessly for me.
Many thanks to you all that have helped.