Using Maintenance Mode to redirect to external page

Not sure if this is practical or if will help someone but I use Maintenance Mode plugin here and what I did was just entered a meta refresh tag //meta http-equiv="refresh" content="2;url=" in the code box and had it redirect to my page of choice that way I don't have to spend hours trying to come up with a splash page theme of my own.

I am not necessarily liking this approach since for 2 seconds users still get to see my home page link and of course if clicked only put them in a loop. Cannot find how to disable this so help will be appreciated.

Any help, comments welcome.