How to remove/wedge-vicks and m. tek armor?

You need to stop before the event bit setting at CA/5E7E. Also, you would need to leave the party setting up command at CA/5E6B (4 bytes).

On a side note, using an empty command like FD works to "erase" part of an event as long as you don't code FD for a specific purpose, but I'm much more a supporter of either using the call command B2 followed by a FE or even better completely removing the event part you don't need (with copy/paste feature WindHex seriously lack of). In the end, the result is the same and for a beginner the FD approach is good.