WANTED: MCEdit Filter

Calling all Tech-Savvy People!!

I have an important request!  ^^
Can anyone determine if there is an MCEdit filter that can replace all later-Minecraft-version blocks inside selected chunks (say, from version 1.7/1.8/1.9) into their legacy-friendly equivalents?  For instance, all colored glass panes would become regular glass panes, all acacia branches would become jungle branches (and in the right orientations), and all special flowers would become roses or yellow flowers?

I'm hoping to get something similar to the Cobblestone Forest Filter featured here...

http://www.reddit.com/r/Minecraft/wiki/mcedit_scripts

which can go about replacing some blocks with others... expanded to encompass all modern blocks, this could prove very useful for a new project I'm planning.  ^^

I heard of a guy called Sethbling, he made a lot of MCedit's filters, maybe you can find some in his page. :3
http://sethbling.com/

I don't know whether this help or not though, he usually make the filters that are more complex than the one you requested...

I tried to find some on that page before, but I never found anything designed to "backport" things to an older version of Minecraft. -.-

SethBling seems to like to make things to impress rather than...to be useful. I'll look around a little bit, maybe I can find something.