Hang on guys, I am listening, the locations that I we are going is fixed, only can really twist the traveling time and what to travel. I am trying to work out the best plan for my folks and myself.
After learning the 10800 yen fare, I am looking for tuning this part of my trip which had been the sticking point from the day of planning.

robyng, if I was your kid would the below itinerary still be too hectic? Have to as you cos you would really have closer thinking channel as my folks would... (Thanks in advance for your opinion)
As the guys that really want me to change my traveling by air, this one below I think is the best I can work on for my folks, instead of traveling ahead to Hakodate/New Chitose, will think of a night at Sendai and Morioka (recommendation?)
This one involve getting up early. But we will make up time going to Sendai by air on ANA. Plus its easy on the budget, swapping the Green Seat to Normal and using that money to fly instead and we are able to make up alot of time.

04:53
BEPPU
[77 Min]
LTD. EXP SONIC 2
06:10

06:36
KOKURA
[17 Min]
SHINKANSEN KODAMA 851
06:53


07:08
HAKATA
[5 Min]
Fukuoka City Subway Kuko Line
07:13
FUKUOKA AIRPORT

Then
11/23
(SU) NH1275
Fukuoka Sendai
Operated by ANA WINGS
Dep 08:00
Arrive 09:40
Travel time 01:40
Economy
735