Is there an affordable accomodation from Osaka to mount fuji?

I plan on going to japan in september and landing in kansai airport. I'm just wondering if i can take a train or something for an affordable price since when looking online i saw it cost me like 70 euros to take the train and the alternative is to take a 10 hour long bus that's still quite expensive. If you guys got any recommendations or advice let me know (i can also take the plan to tokyo so when i land i'm close to mt fuji)

by loepio