Changing locks

Whew.  These look like good locks and I was preparing to order a set for myself.  From amazon. com the right part is http://www.amazon.com/Combi-Cam-7850R-L-Chrome-Large-Combinated/dp/B000W7DBWA/ref=pd_bxgy_auto_text_b
I will be ordering my set shortly.  Thanks for advice and update.

Received the locks yesterday.  Problem.  Evidently they make several lengths.  The ones I bought were only 5/8" long.  Too short.  So contacted Amazon and will be sending them back.  Reordered the 1 1/8" length.  In the mail.  Will report.

Sure.  Here it is. 

Combi-Cam 7850R-S Chrome Small 5/8" Combi-Cam Combinated Cam Lock - Combi-Cam Lock

Now they are only $11.86 each. 

As mentioned I went to Amazon and ordered two combo locks for the side access doors, about $12. each.  In the mail.  Then I got my toolbox out, dusted it off and took out a phillips screwdriver.  Proceeded as if I knew what I was doing.  Opened the main door and unscrewed the 4 phillips screws from the lockplate and carefully placed them somewhere, so I wouldn't lose them.  Then to the edge of the door and unscrewed the two more phillips head screws that hold the lock plate in.  Carefully removed the entire lock and handle from the outside of the door.  The door itself will only probably keep out lowflying birds.  Pretty thin.  Now what?  First went to Home Depot to the key guy, and I was told they only rekey what they sell.  NO help at all.  Then went to my local locksmith(Mr. Easy Money) and showed him what I had.  He took a pick out in about 5 seconds had the lock in his hand.  (Why do I lock everything up?)  Anyway $35 later he had rekeyed the upper lock and made three keys.  The lower lock still uses the accessory key to unlock the deadbolt. After the first $35 I was ok with that.   Went home and replaced everything(remarkebly all the screws were right where I left them.)  All went back together and voila, it works.  Guess I could add handyman to my resume, but I think I would be laughed out of the handyman club.  Did look at portable electric drills while at Home Depot but at about $69 and up I will use and old drill to activate my corner stabilizers.  Back home and I haven't broken anything or lost anything.  Therefore I consider it a job well done!!

Just did some further research and ended up at Amazon.  They have a combination lock that replaces the side access doors for about $12 each.  Have ordered two.  Now have to remove lock from front door and have it rekeyed.  Searched on Google and found out it really easy.  Even for a doofus like me.  Will respond with my results.