From Tokyo Station to Kawaguchiko

Hi,

I'm a little confused. I plan to go to Kawaguchiko by train only and I used hyperdia. Do I really need to reserve ticket if I'm going to take LTD. EXP KAIJI and Fujikyu Railway? If yes, kindly give me their website or contact number. Or can I just purchase it from the train station itself? I plan to go this November which is peak season for autumn.

Thanks

Do I really need to reserve ticket if I'm going to take LTD. EXP KAIJI and Fujikyu Railway?

No, seat reservations are not mandatory as the train also carries some wagons with unreserved seating. Unreserved seats are a few hundred yen cheaper than reserved seats.

From Otsuki (JR) to Kawaguchiko, it is by Fujikyu (private) at 1140Y.
If you just travel to kawaguchiko and return the next day, there is a Fujisan Express free ticket that allows you to travel on its non-reserved seat of the limited express.
http://e.fujikyu-railway.jp/ticket/

I see, but does it take long to purchase tickets? From what I researched, I'm only given a little time to purchase tickets. Is the ticketing office far from the platform?

If I missed my train schedule, approximately how long should I wait again?

It seems like taking the bus is a better option?

If you dont have that express ticket, you have to wait for the "normal" rail which costs 1140Y. With that, you can travel on both normal and limited express.

Note I have not bought this ticket before but found it when I was searching for more info on Fujikyu rail.