Changing buses at Ikebukuro bus terminal to west exit?

I was wondering if anyone has had experience on this before… I’ve booked an overnight bus on Willer that goes from Osaka to Tokyo Ikebukuro sunshine city bus terminal. The next bus I was going to take is the Willer Airport Limosine, which says it’s at Ikebukuro station west exit. I looked it up on google maps and it’s a 21 minute walk. Are there any other options that are shorter? Do you think I would be fine walking to the next stop with one large suitcase and a backpack?

by bobabobabunny