Finding Kintetsu Namba Stn from Nankai Namba

Could any member please advise me the quickest way/route to get to Kintetsu Namba station from Nankai Namba Station? Would 15 minutes be ample for this "rush" ?

Very easy directions under 10 min enough 500m far north simple straight route.
A lot of direction signs with eng.

[Nankai(南海] 難波 Namba stn map [PDF]
http://www.howto-osaka.com/global/pdf/railway/nambastmap.pdf
[Kintetsu(近鉄)] 大阪難波 : Osaka-Namba stn map [PDF]
http://rail.hanshin.co.jp/uploads/guidemap/osakanamba.pdf

[directions]
Nankai train - Namba stn platform 3F (ticket gate : front car side only)
- [left long escalator (non stop 2F)] to 1F direct
- [escalator] - B1 - [underground passage]
- Kintetsu"Osaka-Namba" stn east exit [東改札口] (B1F)
- Kintetsu train platform (B2F)

(note)
No "Nankai namba" name station "Namba" is so.
Station name plate and direction signs not using kanji "難波"
using hiragana "なんば" like this. http://urx.nu/dBuJ
Also No "Kintetsu namba" name station. "Osaka-Namba" is so.
http://rail.hanshin.co.jp/station/osakanamba.html
Kintetsu namba stn stop "Hanshin railway" train,too.
(So not wrong "Hanshin railway" web URL)

NT,

I was very concerned about missing the
Kintetsu train to Nagoya.
Your detailed explanation certainly has been a great help. Many thanks !

Oh,sorry only last direction was wrong
forgot last 1 floor down part.
Pls check again Osaka-Namba stn map PDF.

B1 - [underground passage(地下街)] - [escalator]
- Kintetsu"Osaka-Namba" stn east exit [東改札口] (B2F)
- Kintetsu train platform (B3F)

oops, found another mistake.

Kintetsu"Osaka-Namba" stn east ticket gate[東改札口] (B2F)

Not east "exit[出口/出入口]".

NT,

Again many thanks!

I have made a print-out copy of the details, this will make the day easier for me.