Register residence in Japan for vehicle registration !?

[silencium]

Hello Japan experts. Soon I start a big trip from Switzerland to Japan on my Motorbike. I planned on ending my trip in Japan, incl. driving my motorcycle there before shipping it back to Europe. I have a carnet de passages and I am aware that I need to authenticate the CDP at a JAF office as well as getting my drivers license translated there on arrival.
Now the JAF staff wrote me that I will have to register my temporary residents in Japan in order to get my vehicle inspected...
How much effort and more important how much time (days) would that consume at a minimum?

This is the procedure the staff from JAF sent me:

To drive motorcycle or vehicle in Japan (which is registered in Switzerland)
(1) You have to register your residence in Japan temporary,
① You go up to the immigration Office to immigrate. In detail, you should ask your country Consulate Office in Japan.
② After the above procedure, you have to register in some city hall (ward hall: just in Tokyo) as a citizen of that city (ward).
(2) You have to go up to the Land Transport Branch Office to get inspection of your motorcycle (vehicle). Afterward, you will be get registration on your motorcycle (vehicle) after approved.
(3) Finally, you would get the Japanese plate number.
(4) Your motorcycle (vehicle) should be covered liability insurance and optional motorcycle (vehicle) insurance at motorcycle (vehicle) dealer’s shop.
(5) When you would depart from Japan, you would have to remove your Japanese plate number in the bonded area where you would export your motorcycle (vehicle). As same time, you should go up to city hall (ward hall) and the immigration office to leave Japan.

Point 1 (with the circled 1 and 2 ) is the biggest question mark for me.
I hope someone here can tell me if that is possible to accomplish in a few days.