I wanna sell my products in my country and dropshipping in europe

Hi community this is secound time I post this annoucement so please if u can help me.

I want to make my store from national(Im selling my products in Romania) to international(I will sell my products in Ro and in europe I wanna make dropshipping.

I already installed 3 apps:

weglot-for english translate

currency bucks- for currency change

advanced store localization (to display another products based on your ip)

i also buy a new domain .com which I will use for europe.

the question is:

after all,

1)I will need to put the new domain on the business manager?

2)Do you think is a good idea what I want to make?

3)Do you have some advice for me?

4)is it hard to use multi domain on the app called advanced store localization?