How do I revert from Mavericks to Mt. Lion?

Question

I have tried the suggestions contained in similar threads without success.  My configuration may be causing problems.  Here is my configuration and the pathway I would like to use:
As shown below, I have a MacPro early 2008 running OSX 10.9.  I have an iPhone 4S running iOS 7.0.3.  I back up Time Machine to an external hard drive and also to a separate internal hard drive that occupies one of the bays on my Mac Pro, but it is NOT the same hard drive on which Mavericks resides.
Before migrating from Mountain Lion 10.8.5 to Mavericks, I did a final backup of Time Machine to each of the two drives mentioned above.  I then proceeded to install Mavericks 10.9.  For me, this was a mistake.  I normally wait until at least three updates have occurred before moving up to the next OS X offering.  The many flaws I have encountered in the way Mavericks currently operates have funally exhausted my patience and I must revert to 10.8.5.
I would like to make the change using Time Machine for both the Mountain Lion operating system and all of the applications and documents.  If I were going to reinstall Snow Leopard 10.6.8, I would start by reinstalling the OS using the DVD which I have and then I would restore the apps and documents from Time Machine.  However, neither Mavericks nor Mountain Lion have DVDs.  I believe that they both can be installed by Time Machine, but this is where I run aground. I don't know how to make it happen.  I have tried and have been hindered by popup windows telling me I can't change the Applications.  I can't go on from there. I would prefer to dowload from the hard drive version of Time Machine rather than the external drive for the simple reason that the internal hard drive is faster.  If that is not advisable, I am certainly willing to go with the external drive.  It is my understanding that I can restore Mountain Lion directly from Time Machine along with all of the documents and other stored items such as Applications, Library, etc.
I have tried to do this, but can't seem to get the hang of it.  I need a tutor who knows how to do the job using this path.  Assistance will be greatly appreciated.

Answer 1

A SIMPLE METHOD FOR REVERTING FROM MAVERICKS BACK TO AN EARLIER OS X VERSION
There were so many caveats and side issues included on various instructions that didn't apply to me that I thought it was a bit confusing. However, I got the idea that restarting while pressing down the option key would give me access to the Recovery drive. I tried it and it gave me several choices. The top one was irresistible. It says "Restore From Time Machine Backup." I had done full backups using Time Machine to both an internal hard drive on my MacPro and an external hard drive just before installing Mavericks. I clicked on "Restore From Time Machine Backup" and selected the external drive since I wasn't sure that the internal drive would work. The internal backup drive is faster, but I felt the external drive was a safer bet. A window came up asking me to choose which backup I wanted to use. I picked the one I made just before installing Mavericks and it went to work. It took a couple of hours to finish, but as it restarted and Mountain Lion 10.8.5 appeared on the screen, I was totally relieved. I feel liberated. Everything works. No wacky glitches to say "gotcha!"
When you consider all of the written instructions, many of which are very difficult to follow, this very simple method of restoration is amazingly easy. I hope it helps others who are considering moving to OS X 10.9. Just get a good external Time Machine backup of your present system before you venture.