Ueno to Kusatsu by train/bus

HI there,

Understand that i have to take train from Ueno to Naganohara-kusatsuguchi then take a bus to kusatsu.

Is it better to get the reserved seat?
Is this the cheapest way to travel? or is there any pass available?

Please advise.

Thank you.

transportation options

http://www.japan-guide.com/e/e7403.html

I would get the Kanto Rail Pass and take the direct Limited Express. You can also take the the Shinkansen as far as Takasaki.

Use the Kanto Rail Pass, i can take shinkansen to Takasak & then take a local train to Naganohara-Kusatsuguchi Station. From there, i have to take another JR bus to Kusatsu.

Anyone knows how much does it cost to take local train from Takasak to Naganohara-Kusatsuguchi Station?

Please advise whether am i correct?

Thank you.

The Kanto pass also covers the local train from Takasaki to Naganohara-Kusatsuguchi.