Yeah......you are the first person here mention on Tateyama Alpine Route.     
Yeah......You also the first person here reach Osaka that didn't go Kyoto & Nara.   

Most the placed you visit are on Center part of Japan. If me I will set my Hotel and main point at Nagoya.
Since you reach Kanazawa.  Want go Fukui also?   Fukui got the best seafood of Japan Sea + Japan Best Pork Rice (Katsudon)

You go Kanazawa? Very good, was there 2004. Historic place, go visit the Samurai quarter, also the big nice ancient garden.

The best are Tojinbo cliffs, Cherry Tree Tunnel ( sakura blom season only), Asuwayama park, Echizen coast, ichijo falls.
Tateyama Alpine route closed from 1st of Dec to 1 April.    Best time visit Tateyama route are 5th of April.  Peak season but Snow wall also the best time.

Yeah......you are the first person here mention on Tateyama Alpine Route.     
Yeah......You also the first person here reach Osaka that didn't go Kyoto & Nara.   

Most the placed you visit are on Center part of Japan. If me I will set my Hotel and main point at Nagoya.
Since you reach Kanazawa.  Want go Fukui also?   Fukui got the best seafood of Japan Sea + Japan Best Pork Rice (Katsudon)

Emm....your Info are not complete.  
First Nagashima Station only can get thru from Nagoya Station. mean you have to Go Nagoya Station from Osaka City.  Ya...your Kintetshu Wide Pass are important.  You can ride Kintetsu Limited Express from Namba Station to Nagoya Station with this pass.

Note: Choose Wisely. Because Kintetsu Pass for Limited Express, You only can ride 3 times only.  So 2 times is for Namba > Nagoya > Namba.  SO to Nagashima Station you either choose limited express going or back to Nagoya.
Other Stuff.....is quite ok...
Kinosaki onsen more detail info:
From Shin-Osaka Station take JR kounotori Limited Express to Kinosaki Onsen Station.

Kanazawa Station Info:
Since you going Kanazawa. Your Starting point at Osaka Station.   No point going Tsuruga first. Because you from Osaka to Tsuraga also using Limited Exprss thunderbird.  This Thunderbird are going Kanzawa also...all the way to Toyama.  Ya JR kansai Wide Pass not cover all the way to Kanazawa.   But get down at Tsugara buy ticket to Kanazawa again by using Next Thunderbird train quite waste time.     Yes you save money  but you waste another 1 hour

1) First Point are Limited Express from Namba Osaka to Nagoya no stop at Nagashima Station.  But it stop at Kuwana Station.  From Kuwana Station have to take Local train to Nagashima Station which one stop away from Kuwana Station.  using the limited express 2 times only....Namba to Kunawa back to Namba

2) Is Shin-Osaka Station not Osaka Station.  If you want to take JR kounotori Limited Express to Kinosaki Onsen Station. About People...You have to arrange what best suit u on that day.  Umeda & Namba Station are Key Station...Always Jam packed with people.

3)  Due to Seat Reservation problem.  You have to get down from Tsugara Station.  But there is one way to ask at Osaka JR ticket counter.  You tell them From Osaka to Tsugara will using Pass. I want to buy the ticket from Tsugara to Kanazawa.  Buy the ticket at Osaka instead buy at Tsugara Station.  If the ticket officer dunno any english then u are Fxxx

Why make thing so complicated?    At Namba Station just take Midosuji Line (Subway) Line No1 Code M.  All the way to Shin-Osaka Station.  If alot people just wait until ur turn to get onboard.

Note: This line are Osaka Subway Line...not Cover by any JR pass.


This is the peak hour at Namba Station

Hyperdia

try using above link to plan ur route... if u need help when u at japan, jus dl their apps... 30 days trial version... it helps a lot in saving time n money...     

Aim for those Toyoko Inn , Dormy Inn , APA nagoya Hotel.

each night 7000 - 10000 yen

Nah use this to filter the price and hotel available near Nagoya station 
Hotel combined

Tokyo Disneyland sienz.....for kiddo only.

I more Prefer Nagoya Spaland.   From this thred since V1 to today V2....everyone just say Disnedland Disneland ....USJ USJ.....sienz....those all for Kiddo!!!

Real Stuff at Shizuoka Fuji Q & Nagoya Spaland.   This 2 are the real sh!t Theme park.   No one ask these 2 at all.....