I know RS Regulate is sold out and finding the right mount is very difficult, but wouldn't you want to get the right mount to cowitness your micro red dot with the iron sights as it was intended by RS Regulate?
If you are only going to ever use a redot then yes. If you want to possibly run an LPVO, fixed magnified optic or other scopes the full length rail is the most versatile. I have some fun things planned that will require the full length rail.
You've got an AKE from Palmetto State Armory? Dang, looks like you're putting a lot of money into your AK. That's even before the mount. I just bought one of their GF4s. It's a little less fancy than the AKE but it's a notch above the GF3.