I am thinking how to sell many stuff with BSV and the optio…

I am thinking how to sell many stuff with BSV and the options are mostly 2.
First one is to make a vast curated collection of items and sell them but shipping is expensive. This give me control on the margin but stock, shipping and related issues headache.
The other option is to find business partners in several countries and sell their items online so to cut the shipping cost.
This is not an easy thing to do for the human part, dealing with multiple sellers in different languages with different currencies sounds more complex but it would allow me to have access to basically any item available and to have domestic delivery.
A third option could be to let customer ask for the product wants to buy in a given country and to offer a quote in BSV, and act as an intermediary but this would probably means the price would be less attractive and the job too manual.
Thoughts?