Yep, it's that simple.

The last thing you want to do is have to add weight. And if the nose becomes TOO long then it does have some downsides as well. As a general rule of thumb the prop is best off when it's about one wing chord in front of the leading edge or less. But this is not chiseled in stone by any means. Folding props on electric models will often foul the wing when folding unless the motor and prop are a bit more forward. And if you look at Open Class "Mulvihill" rubber models you'll see noses that are almost silly long. Yet they fly just fine.

Also there is simply nothing at all sacred about having the battery pack located right at the CG. And in fact it is one of the primary things to move as required to get your CG into the right spot. ESPECIALLY if you fit a lighter than stock motor and need to shift the CG.