You can just create another character -> modify/customize it on there till you're happy with it -> save the preset -> get on your main -> click on that saved preset and Voila
I think it's close to 1 hour, which even if you can make another char and save the preset, is still absolutely ridiculous.
It is kinda. 30 minutes would've sufficed, an hour is punishment for fucking something small up. I had this issue with one of my chars the other day--missed something and wanted to fix it, went to buy another scroll only to find out that I couldn't use it for another hour. I got it fixed eventually, after saving the preset and all, but yeah...30 minutes is good.