A few questions regarding capital gains tax for inherited property to be sold

I'm (10+ year resident of Japan) inheriting 25% of a plot of land in Greece (estimated total value estimated €300,000 , so €75,000 for me). 50% will go to my uncle (foreigner, non-resident) and 25% to my sister (foreigner, non-resident). The deceased is also foreigner, non-resident

If I understand correctly I'm well below the standard deduction so I won't have to pay inheritance tax in Japan nor do I have to report it (correct me if I'm wrong)

We want to sell the land. This means I have to calculate capital gain.

1. for 取得費 (acquisition cost?) can I include the cost for accepting the inheritence (notary cost, registration in land register, fee paid at Greece embassy in Japan for setting up a Power of Attorney, attorney fee (did the work necessary procedures to accept the inheritence), accountant fee (set up tax account in Greece so I can pay taxes necessary for inheriting)?
2. For 譲渡費用 (cost related to sale?) can I include the attorney and accountant fee when they do work for me in order to sell it?
3. I was just told I need to pay inheritance tax in Greece (€8000)  . If I can sell it in 3 years (starting after inheritance tax declaration deadline date) can I add this to 取得費 according to [続財産を譲渡した場合の取得費の特例](https://www.nta.go.jp/taxes/shiraberu/taxanswer/joto/3267.htm)? Or is this limited to inheritance tax paid in Japan?

I've searched on English and Japanese websites but couldn't find clear answers.

Thank you