Please help with wheter JR West Kansai Wide Area Pass will work for me

Hello,

I am researching if the JR West Kansai WIDE Area Pass will work for me. I have two legs of the journey that I am researching for my trip in April.

I want to go from Kinosaki Onsen to Amanohashidate by way of Toyooka. The first part of this from Kinosaki Onsen to Toyooka is on Ltd. Express Kinosaki 12 and I know that I can reserve tickets on JR WEST website for this. After I would transfer to the Ltm Express Tango Relay 4 at Toyooka onto Amanohashidate and for this I am unable to find out where to purchase individual tickets or reserve seats (the Willerexpress.com website for the Tango Railway doesn't sell tickets for this as far as I can tell) So this is why I'm thinking of going the JR West Kansai WIDE Area Pass.

The pass may also help me on my second journey:
From Amanohashidate to Kyoto. In my research on JR West website it shows Ltd. Express Hashidate 4 offers a direct route but I am unable to purchase tickets for it on that site and do not know where I can prebook them online.

Am I able to use the JR West Kansai WIDE Area Pass for all of these routes? Is there any way to pre reserve the seats online or do I have to wait until I am in Kyoto or Kinosaki Onsen or Amanohashidate to reserve my seats. I'm afraid that the route I'm interested in from Kinosaki Onsen to Toyooka to Amanohashidate only has 5 mins transfer time in Toyooka and since I don't speak Japanese that I won't have time to get the tickets from Toyooka to Amanohashidate.

If I calculate out the cost, the pass isn't any more of a savings for me since I won't be using it that much, but since I can't figure out where to pre purchase some of these legs I'm thinking that it may help with getting tickets. I just have to figure out how I an reserve seats ahead of time, hopefully online.
Thank you for any help and insights
WB