This is a little problem I have noticed. I'm not sure if anyone else has had this, but when using #scribespells, it will erase the other spells. For instance, i did #scribespells 75, 75 and it gave me my 75 spells. then i did #scribespells 71,71 and it gave me my 71 spells, but got rid of my 75 ones

Yeah I just made a post about this today. Apparently it deletes the first spells in your spellbook or something like that.

http://www.eqemulator.net/forums/showthread.php?t=28871

Did you ever ponder the thought of having one merchant in your main zone that sells everyone's 71+ spells?

This seems like an easy fix compared to trying to write a custom command to do the same thing.