Sorry if this is not posted in correct area. I posted below question this morning in an old post buried deep and was afraid no one would see it. I am pretty ignorant about forum edict currently.
Posting to an old thread of the same topic is perfectly fine, even preferable. Any thread that is touched will pop up with "new" postings at the top of the topic list, regardless of how old it is, so everyone in that forum will see it. However, you didn't post about fenders in THIS forum, but in the "Industry Merchants" forum. Some (many?) will not follow that one (I don't, for example) so response might be limited.
Your post is here:
http://www.zggtr.org/index.php?topic=128.msg295678#msg295678 and already has one reply
Being that is a part for a C14, this is a perfectly correct forum, however.
P.S.- I don't have any info about or experience with fender extenders...