JR Kanto or East Passes

Hi,

Planning a trip to Tokyo with side trips between 14 December to 18 December before remaining in Tokyo or another side trip from 18 Dec to 22 Dec. Would gladly appreciate help in terms of the use of the JR passes.

Currently, the rough plan is this:
14 Dec:
-Arrive at Narita -Travel to Ueno -Travel to Kusatsu 15 Dec:
-Kusatsu 16 Dec:
-Travel to Minakami 17 Dec:
-Stay in Minakami 18 Dec:
-Travel to Hakone 19 Dec:
-Stay in Hakone 20 Dec:
-Travel back to Tokyo 21 Dec:
-Tour Tokyo 22 Dec:
-Depart Tokyo via Haneda

May I know if the plan makes sense? And may I know which passes would best fit the plan. The JR Kanto Pass seems to cover the places I want to get to, so does it make sense to buy the pass for 2 periods to cover the transport to these places?

Thanks.

Chris