Hello, again.
The Nippori - Kita-senju routes include a detour;
so, when you choose not to use Keisei Skyliner,
you can discard Options #1 and #2, I suppose.
I suggest another option, which could be your Option #4.
- Keisei: Indexes of timetables for trains of Narita Airport accesses
http://www.keisei.co.jp/keisei/tetudou/skyliner/us/timetable/index.php##: Keisei Takasago and Keisei Sekiya Stations are often called without "Keisei" in their names.
[Oshiage option]
My arrival in Narita T2 is on 13/12 at 4.05pm. After 16:15 [4:05 p.m.] on weekdays,
the first Keisei train for Oshiage is scheduled to depart at 18:05,
which is a Limited Express train bound for Haneda Airport
to run by Keisei Main Line until (Keisei) Takasago (##).
Probably you can catch an earlier Keisei train;
in that case, you will change trains to get to Oshiage, so you will make 3 transfers.
A Keisei-Tobu transfer in Oshiage is short and simple,
but since you will get there in a weekday evening (highly likely during a rush),
the concourse may be crowded with commuters and Tokyo Skytree Town visitors.
- Tokyo Metro: Map (in Japanese) of Oshiage Station(s)
http://www.tokyometro.jp/station/yardmap_img/figure_yardmap_oshiage.gi...: The Keisei and Toei Subway tracks are on the first basement [B1F];
your Keisei train will arrive at Track 1 or 2.
: The concourse is on the second basement [B2F].
: Exit B3 is good to have a close view of Tokyo Skytree.
: The Tokyo Metro and Tobu tracks are on the third basement [B3F];
your Tobu train will depart at Track 4.
[Sekiya-Ushida option]
I have confirmed
that you can take a shortcut by making a transfer
from (Keisei) Sekiya Station (##) to Ushida Station.
Once I put this option aside
because Ushida Station of Tobu has a staircase near its gate,
but a station guide map which is offered by Tobu tells
that there is a barrier-free way inside the gate.
Keisei trains other than Local trains do not make a stop at (Keisei) Sekiya (##);
so you will make two transfers,
first between a Keisei Limited or Access Express train and a Keisei Local train
then between Keisei and Tobu.
- Keisei: Map of Keisei Sekiya Station
http://www.keisei.co.jp/keisei/tetudou/stationmap/pdf/us/107.pdf: Your Keisei Local train will arrive at Track 1.
: You see in the map
a set of staircase and slope between the concourse and the ground.
- Tobu: Map (in Japanese) of Ushida Station
http://railway.tobu.co.jp/guide/station/insidemap/1110.html: Your Tobu Local train will depart at Track 2.
Directions in these two maps differ;
the above-mentioned Keisei staircase and the Tobu gate
actually face each other across a road.
There is a short pedestrian crossing between the two stations.
(Convenience store chain FamilyMart
and fast-food restaurant chain McDonald's
each has a shop nearby.)
- Google Maps: Around Ushida Station of Tobu
https://www.google.co.jp/maps/place/Ushida+Station,+1+Senjuakebonoch%C...Time to make the transfer there is estimated by HyperDia at 3 minutes,
but that sounds to short.
You may need at least 5 minutes to get from platform to platform;
also, if you hope to avoid staircases and escalators,
you may have to wait for all the three elevators.
In the evening at Ushida Station,
Tobu Local trains for Kanegafuchi are available at intervals of about 10 minutes.
http://www.hyperdia.com/en/cgi/en/search.html?dep_node=NARITA%20AIRPOR... http://www.hyperdia.com/en/cgi/en/search.html?dep_node=NARITA%20AIRPOR...[Transfer in Keisei Takasago Station]
In (Keisei) Takasago Station (##),
you can change your trains via one same platform;
your two trains may use either the same track or the two tracks beside the platform.