I think that regardless of whether this project has any chance of succeeding, it's worth pursuing for at least this reason: practice.
I'm a firm believer in the idea that no matter how much experience you have, you should practice.
Every skill that isn't practiced wanes over time. Commercial projects usually don't provide the sort of regular stimulation needed to improve one's abilities. Sometimes it's not even enough to maintain them.
Even if they do, you should probably not rely on that, because it leads to design decisions that scratch that itch instead of getting the job done.
I'm a firm believer in the idea that no matter how much experience you have, you should practice.
Every skill that isn't practiced wanes over time. Commercial projects usually don't provide the sort of regular stimulation needed to improve one's abilities. Sometimes it's not even enough to maintain them.
Even if they do, you should probably not rely on that, because it leads to design decisions that scratch that itch instead of getting the job done.