Ticket to Kawaguchiko Station from Narita T1

Hi,

My flight arrive at Narita T1 on 8am on 24/4 which is Sunday, can I purchase the Narita Express 8 ticket after my landing? I have check the departure time is 9.15am. Do you think I can able to rush and make it for this train?
Just for info, I couldn't purchase through online in advance because it need to be collected 2 days earlier which I still haven't arrive yet. Much appreciate for everyone advise on this.
Thank you very much.

If your flight is not delayed, that's more than enough time.

Thank you Firas,

So it shouldn't be an issue to purchase it on that day?
I am more worry the ticket will run out or it only can be purchase online.

I think it's unlikely that the train will sell out; right now there are still many available seats for this coming Saturday and Sunday.

Thank you so much Firas. Your info help a lot.