Well going the universal route is definitely an option, but if you just need to buy the rm-aap040 than you can find companies online that are selling this remote such as I found this:
[Link: remotecontrolscenter.com] and it says it's in stock. However most the universal remotes listed in this thread sound like they will be cheaper than the price listed on that page, but it gives you an option. You know that the original will be able to work all the functions of your new tv.